diff --git a/src/Constants.js b/src/Constants.js
index 5b52ab2fc..152665c96 100644
--- a/src/Constants.js
+++ b/src/Constants.js
@@ -48,7 +48,7 @@ let CONSTANTS = {
     /* Netscript Constants */
     //RAM Costs for different commands
     ScriptBaseRamCost:              1.6,
-    ScriptDomRamCost:               100,
+    ScriptDomRamCost:               25,
     ScriptWhileRamCost:             0,
     ScriptForRamCost:               0,
     ScriptIfRamCost:                0,
@@ -91,6 +91,8 @@ let CONSTANTS = {
     ScriptSingularityFn2RamCost:    2,
     ScriptSingularityFn3RamCost:    3,
 
+    ScriptSingularityFnRamMult:     2, // Multiplier for RAM cost outside of BN-4
+
     ScriptBladeburnerApiBaseRamCost:    4,
 
     NumNetscriptPorts:              20,
@@ -507,8 +509,12 @@ let CONSTANTS = {
     LatestUpdate:
     `
      v0.41.0
+     * WARNING: In NetscriptJS, defining a function called print() is no longer possible
+     * RAM Cost of accessing the global document object lowered from 100 GB to 25 GB
+     * RAM Cost to use Singularity Functions outside of BitNode-4 lowered by 75%. They now only cost twice as much as they do in BitNode-4
      * b1t_flum3.exe now takes significantly less time to create
      * Improved number formatting for Player 'work' actions (including crimes, etc.). These numbers should also adhere to locale settings now (by Kline-)
+     * Bug Fix: Calling print() in NetscriptJS no longer brings up the print dialog
      * Bug Fix: Fixed a bug that sometimes caused a blank black screen when destroying/resetting/switching BitNodes
      * Bug Fix: Netscript calls that throw errors will now no longer cause the 'concurrent calls' error if they are caught in the script. i.e. try/catch should now work properly in scripts
      * Bug Fix: Fixed a bug where sometimes the NeuroFlux Governor Augmentation level would be incorrectly calculated when the game was loaded
diff --git a/src/NetscriptFunctions.js b/src/NetscriptFunctions.js
index f59185bcf..30522c8ad 100644
--- a/src/NetscriptFunctions.js
+++ b/src/NetscriptFunctions.js
@@ -2313,7 +2313,7 @@ function NetscriptFunctions(workerScript) {
         /* Singularity Functions */
         universityCourse : function(universityName, className) {
             var ramCost = CONSTANTS.ScriptSingularityFn1RamCost;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("universityCourse", ramCost);
             }
@@ -2402,7 +2402,7 @@ function NetscriptFunctions(workerScript) {
 
         gymWorkout : function(gymName, stat) {
             var ramCost = CONSTANTS.ScriptSingularityFn1RamCost;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("gymWorkout", ramCost);
             }
@@ -2504,7 +2504,7 @@ function NetscriptFunctions(workerScript) {
 
         travelToCity(cityname) {
             var ramCost = CONSTANTS.ScriptSingularityFn1RamCost;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("travelToCity", ramCost);
             }
@@ -2541,7 +2541,7 @@ function NetscriptFunctions(workerScript) {
 
         purchaseTor() {
             var ramCost = CONSTANTS.ScriptSingularityFn1RamCost;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("purchaseTor", ramCost);
             }
@@ -2585,7 +2585,7 @@ function NetscriptFunctions(workerScript) {
         },
         purchaseProgram(programName) {
             var ramCost = CONSTANTS.ScriptSingularityFn1RamCost;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("purchaseProgram", ramCost);
             }
@@ -2637,7 +2637,7 @@ function NetscriptFunctions(workerScript) {
         },
         getStats : function() {
             var ramCost = CONSTANTS.ScriptSingularityFn1RamCost / 4;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("getStats", ramCost);
             }
@@ -2661,7 +2661,7 @@ function NetscriptFunctions(workerScript) {
         },
         getCharacterInformation : function() {
             var ramCost = CONSTANTS.ScriptSingularityFn1RamCost / 4;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("getCharacterInformation", ramCost);
             }
@@ -2697,7 +2697,7 @@ function NetscriptFunctions(workerScript) {
         },
         isBusy : function() {
             var ramCost = CONSTANTS.ScriptSingularityFn1RamCost / 4;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("isBusy", ramCost);
             }
@@ -2712,7 +2712,7 @@ function NetscriptFunctions(workerScript) {
         },
         stopAction : function() {
             var ramCost = CONSTANTS.ScriptSingularityFn1RamCost / 2;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("stopAction", ramCost);
             }
@@ -2734,7 +2734,7 @@ function NetscriptFunctions(workerScript) {
         },
         upgradeHomeRam : function() {
             var ramCost = CONSTANTS.ScriptSingularityFn2RamCost;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("upgradeHomeRam", ramCost);
             }
@@ -2766,7 +2766,7 @@ function NetscriptFunctions(workerScript) {
         },
         getUpgradeHomeRamCost : function() {
             var ramCost = CONSTANTS.ScriptSingularityFn2RamCost / 2;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("getUpgradeHomeRamCost", ramCost);
             }
@@ -2782,7 +2782,7 @@ function NetscriptFunctions(workerScript) {
         },
         workForCompany : function() {
             var ramCost = CONSTANTS.ScriptSingularityFn2RamCost;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("workForCompany", ramCost);
             }
@@ -2823,7 +2823,7 @@ function NetscriptFunctions(workerScript) {
         },
         applyToCompany : function(companyName, field) {
             var ramCost = CONSTANTS.ScriptSingularityFn2RamCost;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("applyToCompany", ramCost);
             }
@@ -2904,7 +2904,7 @@ function NetscriptFunctions(workerScript) {
         },
         getCompanyRep : function(companyName) {
             var ramCost = CONSTANTS.ScriptSingularityFn2RamCost / 2;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("getCompanyRep", ramCost);
             }
@@ -2925,7 +2925,7 @@ function NetscriptFunctions(workerScript) {
         },
         getCompanyFavor : function(companyName) {
             var ramCost = CONSTANTS.ScriptSingularityFn2RamCost / 4;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("getCompanyFavor", ramCost);
             }
@@ -2946,7 +2946,7 @@ function NetscriptFunctions(workerScript) {
         },
         getCompanyFavorGain : function(companyName) {
             var ramCost = CONSTANTS.ScriptSingularityFn2RamCost / 4;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("getCompanyFavorGain", ramCost);
             }
@@ -2967,7 +2967,7 @@ function NetscriptFunctions(workerScript) {
         },
         checkFactionInvitations : function() {
             var ramCost = CONSTANTS.ScriptSingularityFn2RamCost;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("checkFactionInvitations", ramCost);
             }
@@ -2983,7 +2983,7 @@ function NetscriptFunctions(workerScript) {
         },
         joinFaction : function(name) {
             var ramCost = CONSTANTS.ScriptSingularityFn2RamCost;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("joinFaction", ramCost);
             }
@@ -3022,7 +3022,7 @@ function NetscriptFunctions(workerScript) {
         },
         workForFaction : function(name, type) {
             var ramCost = CONSTANTS.ScriptSingularityFn2RamCost;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("workForFaction", ramCost);
             }
@@ -3122,7 +3122,7 @@ function NetscriptFunctions(workerScript) {
         },
         getFactionRep : function(name) {
             var ramCost = CONSTANTS.ScriptSingularityFn2RamCost / 4;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("getFactionRep", ramCost);
             }
@@ -3143,7 +3143,7 @@ function NetscriptFunctions(workerScript) {
         },
         getFactionFavor : function(name) {
             var ramCost = CONSTANTS.ScriptSingularityFn2RamCost;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("getFactionFavor", ramCost);
             }
@@ -3164,7 +3164,7 @@ function NetscriptFunctions(workerScript) {
         },
         getFactionFavorGain: function(name) {
             var ramCost = CONSTANTS.ScriptSingularityFn2RamCost;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("getFactionFavorGain", ramCost);
             }
@@ -3185,7 +3185,7 @@ function NetscriptFunctions(workerScript) {
         },
         donateToFaction : function(name, amt) {
             var ramCost = CONSTANTS.ScriptSingularityFn3RamCost;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("donateToFaction", ramCost);
             }
@@ -3224,7 +3224,7 @@ function NetscriptFunctions(workerScript) {
         },
         createProgram : function(name) {
             var ramCost = CONSTANTS.ScriptSingularityFn3RamCost;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("createProgram", ramCost);
             }
@@ -3278,7 +3278,7 @@ function NetscriptFunctions(workerScript) {
         },
         commitCrime : function(crimeRoughName) {
             var ramCost = CONSTANTS.ScriptSingularityFn3RamCost;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("commitCrime", ramCost);
             }
@@ -3335,7 +3335,7 @@ function NetscriptFunctions(workerScript) {
         },
         getCrimeChance : function(crimeRoughName) {
             var ramCost = CONSTANTS.ScriptSingularityFn3RamCost;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("getCrimeChance", ramCost);
             }
@@ -3356,7 +3356,7 @@ function NetscriptFunctions(workerScript) {
         },
         getOwnedAugmentations : function(purchased=false) {
             var ramCost = CONSTANTS.ScriptSingularityFn3RamCost;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("getOwnedAugmentations", ramCost);
             }
@@ -3380,7 +3380,7 @@ function NetscriptFunctions(workerScript) {
         },
         getOwnedSourceFiles : function() {
             let ramCost = CONSTANTS.ScriptSingularityFn3RamCost;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("getOwnedSourceFiles", ramCost);
             }
@@ -3399,7 +3399,7 @@ function NetscriptFunctions(workerScript) {
         },
         getAugmentationsFromFaction : function(facname) {
             var ramCost = CONSTANTS.ScriptSingularityFn3RamCost;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("getAugmentationsFromFaction", ramCost);
             }
@@ -3425,7 +3425,7 @@ function NetscriptFunctions(workerScript) {
         },
         getAugmentationCost : function(name) {
             var ramCost = CONSTANTS.ScriptSingularityFn3RamCost;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("getAugmentationCost", ramCost);
             }
@@ -3447,7 +3447,7 @@ function NetscriptFunctions(workerScript) {
         },
         purchaseAugmentation : function(faction, name) {
             var ramCost = CONSTANTS.ScriptSingularityFn3RamCost;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("purchaseAugmentation", ramCost);
             }
@@ -3512,7 +3512,7 @@ function NetscriptFunctions(workerScript) {
         },
         installAugmentations : function(cbScript) {
             var ramCost = CONSTANTS.ScriptSingularityFn3RamCost;
-            if (Player.bitNodeN !== 4) {ramCost *= 8;}
+            if (Player.bitNodeN !== 4) {ramCost *= CONSTANTS.ScriptSingularityFnRamMult;}
             if (workerScript.checkingRam) {
                 return updateStaticRam("installAugmentations", ramCost);
             }
diff --git a/src/NetscriptJSEvaluator.js b/src/NetscriptJSEvaluator.js
index 55ce31972..69f3beb64 100644
--- a/src/NetscriptJSEvaluator.js
+++ b/src/NetscriptJSEvaluator.js
@@ -31,8 +31,6 @@ export async function executeJSScript(scripts = [], workerScript) {
     loadedModule = script.module;
 
     let ns      = workerScript.env.vars;
-    //ns.threads  = workerScript.threads;
-    //ns.args     = workerScript.args;
 
     try {
         // TODO: putting await in a non-async function yields unhelpful
@@ -75,7 +73,7 @@ export function _getScriptUrls(script, scripts, seen) {
         // import {foo} from "blob://<uuid>"
         //
         // Where the blob URL contains the script content.
-        const transformedCode = script.code.replace(/((?:from|import)\s+(?:'|"))([^'"]+)('|";)/g,
+        let transformedCode = script.code.replace(/((?:from|import)\s+(?:'|"))([^'"]+)('|";)/g,
             (unmodified, prefix, filename, suffix) => {
                 const isAllowedImport = scripts.some(s => s.filename == filename);
                 if (!isAllowedImport) return unmodified;
@@ -92,6 +90,9 @@ export function _getScriptUrls(script, scripts, seen) {
             }
         );
 
+        // We automatically define a print function() in the NetscriptJS module so that
+        // accidental calls to window.print() do not bring up the "print screen" dialog
+        transformedCode += `\n\nfunction print() {throw new Error("Invalid call to window.print(). Did you mean to use Netscript's print()?");}`
 
         // If we successfully transformed the code, create a blob url for it and
         // push that URL onto the top of the stack.
diff --git a/src/NetscriptWorker.js b/src/NetscriptWorker.js
index ac60657b1..6a02d62d7 100644
--- a/src/NetscriptWorker.js
+++ b/src/NetscriptWorker.js
@@ -14,7 +14,6 @@ import {NetscriptPort}                      from "./NetscriptPort";
 import {AllServers}                         from "./Server";
 import {Settings}                           from "./Settings";
 
-//TODO Maybe escodegen might be better?
 import {generate}                           from 'escodegen';
 
 import {parse, Node}                        from "../utils/acorn";