diff --git a/sketch.js b/sketch.js
index 9ff608e..047aedf 100644
--- a/sketch.js
+++ b/sketch.js
@@ -270,7 +270,6 @@ function GameCharacter() {
                 this.x += this.speed;
             }
             if (this.isJumping) {
-                this.memorizedPlatform = undefined;
                 this.y -= this.curJumpingStrength;
                 this.curJumpingStrength -= gravity;
                 // If the jump peak is reached, the character is considered to be falling instead.
@@ -283,12 +282,12 @@ function GameCharacter() {
                 this.curJumpingStrength -= gravity;
                 for (i = 0; i < platforms[this.curGroundIndex].length; i++) {
                     // If a character is falling above some platform, memorize it
-                    if (platforms[this.curGroundIndex][i].isBelow(this)) {
+                    if (platforms[this.curGroundIndex][i].isAbove(this)) {
                         this.memorizedPlatform = platforms[this.curGroundIndex][i];
                     } 
                     // If a character is below a memorized platform, make them stand on that platform
-                    else if (typeof memorizedPlatform !== 'undefined' &&
-                        this.memorizedPlatform.isAbove(this)) {
+                    if (typeof this.memorizedPlatform !== 'undefined' &&
+                    this.memorizedPlatform.isBelow(this)) {
                         this.y = this.memorizedPlatform.y;
                         this.isFalling = false;
                         this.curJumpingStrength = 0;
@@ -306,13 +305,12 @@ function GameCharacter() {
                 // Not plummeting, standing or falling means being on a platform.
                 // Perform checks whether the player is still on the same platform,
                 // and fall them in case they aren't.
-                if (this.x < this.memorizedPlatform.x - this.memorizedPlatform.width
-                    ||
-                    this.x > this.memorizedPlatform.x + this.memorizedPlatform.width
+                if (!this.memorizedPlatform._isWithinX(this)
                     ||
                     this.curGroundIndex != this.memorizedPlatform.curGroundIndex) {
                         this.isFalling = true;
                         this.isOnPlatform = false;
+                        this.memorizedPlatform = undefined;
                     }
             }
         }
@@ -349,6 +347,10 @@ function GameCharacter() {
         }
     };
 }
+// NB: All the platforms mechanics were done 
+// before the task was seen on Week 20. 
+// Therefore, the implementation may
+// differ from one in the lecture.
 function Platform(curGroundIndex, x, width, y) {
     this.curGroundIndex = curGroundIndex;
     this.x = x;
@@ -390,21 +392,24 @@ function Platform(curGroundIndex, x, width, y) {
     };
 
     this._isWithinX = function (who) {
-        if (who.x > this.x - this.width && who.x < this.x + this.width) {
+        if (who.x >= this.x - this.width && who.x <= this.x + this.width) {
             return true;
         }
+        return false;
     };
 
     this.isBelow = function (who) {
-        if (this._isWithinX(who) && who.y > this.y) {
+        if (this._isWithinX(who) && who.y >= this.y) {
             return true;
         }
+        return false;
     };
 
     this.isAbove = function (who) {
         if (this._isWithinX(who) && who.y < this.y) {
             return true;
         }
+        return false;
     };
 }
 
@@ -989,7 +994,6 @@ function drawTrees() {
         }
     }
 }
-
 function drawPlatforms(rowIndex) {
     push();
     for (k = 0; k < platforms[rowIndex].length; k++) {
@@ -1004,7 +1008,6 @@ function drawPlatformsShadows(rowIndex) {
     }
     pop();
 }
-
 function renderFlagpole() {
     // NB - This function is implemented a bit differently than how it was requested in Part 6.
     // It has no states to switch between - instead, the flag gradually goes into the opposite direction