This project can be kind of laggy, so I recommend using TurboWarp (It even works in 60 FPS mode): https://turbowarp.org/622067901 https://turbowarp.org/622067901?fps=60 Arrow keys to move (up to jump, down to crouch & enter pipes) Tile Engine Controls (if you're curious): "m" to toggle editor "v" and "b" to cycle through blocks Block data is stored in the "Level" list.
