This took me a WEEK. (now that i think about that that was probably quick compared to JavaScript) WASD or arrow keys to move. 0 to open level editor. If you need help, let me know in the comments, or check the "Help" sprite inside.
All credits to: -Me (@Chickasaurus88) -@Giffpatch (for the tutorial) -Nintendo (for the sprites) -and YOU (because they always say that at the credits)