The arrow keys move your Ninja. When you are editing the grid, make sure you leave the middle open, as that is where the Ninja spawns every time. It is very smooth and almost glitch-free, and if you want to remix, please give credit. The scripts are very easy to change, just go inside the project and they are with the Ninja sprite. If you want to disable wall jumping then set walljump? to false, or change how high you jump with the jumpheight variable. I've broken it all down into pieces so you can change how far you rebound after walljumping, how fast you move, etc.
Made entirely by me, please love-it. Remix all you want, as long as it isn't an exact copy of my game. Play this in fullscreen mode for a better effect.