Use arrow keys or WASD to move. Press S to save your game and L to load the game. If the background is red then there is a glitch (tell me what happened).
Thank you to @Griffpatch for the tutorial and resources UPDATE 2.9: SPEEDRUN TIMER, SAVING PROGRESS, & WORLD CUP UPDATE UPDATE 2.8: 4TH OF JULY UPDATE UPDATE 2.7: COINS SHOP, PENNYWISE & LOAN SHARKS UPDATE 2.6: WASD CONTROLS UPDATED UPDATE 2.5: ONE WAY PLATFORMS UPDATE 2.4: WORLD 3 UPDATE 2.3: ROTATING PLATFORMS UPDATE 2.2: WALL JUMP BUG FIXED UPDATE 2.1: MONEY ENEMY UPDATE 2.0: CHECKPOINTS, GAME OVER & GAME MENU UPDATE 1.9: COLLECTIBLES, KEYS, & DOORS UPDATE 1.8: DEVS (MasterzeusX, ClosedCaptionsCheats, & moonlyte95.)UPDATE 1.7: MOVING PLATFORM UPDATE 1.6: SPIKES & LAVA UPDATE 1.5: VERTICAL LEVELS UPDATE 1.4: WALL JUMPING UPDATE 1.3: SLOPES & LIMB POSING UPDATE 1.2: HITBOXES & ANIMATION UPDATE 1.1: NEXT LEVEL UPDATE 1.0: MOVING