Arrow keys to move, X to throw fireballs, 0 to enter the level editor, and some other numbers to enter the rest of editors. There's a mobile mode in the code but it's unfinished. Also, there are some invisible event tiles that do stuff like teleporting you, stopping the camera or switching your character, so keep that in mind. Some of them aren't invisible though, like the gray coins and the M and L circles. The second L circle swaps your character instead of setting it to Luigi, but it's very buggy. Oh and the levels were made for testing purposes, so that's why they're bad.
Nintendo for creating Mario. @griffpatch for the platformer engine. @olliecomics for creating the original Mario model. And uhh, I can't remember who made the song, sorry... As the title says, this is cancelled, so expect bugs! "Why was it cancelled" you may ask. Well, to be honest, I actually can't remember the exact reason lmao, but I'm pretty sure it was because of how messy it was to develop this. You see, my coding skills weren't great at that time, so most of the code that wasn't made by @griffpatch (Like basically every editor but the level editor, though I changed a lot of stuff that @griffpatch's level editor didn't have) was incredibly messy, hardcoded, and hard to change. Also, @griffpatch's engine is great, but doesn't support tiles with custom shapes, which was something I wanted to have for the game. Now you may say "Why don't you redo the game from scratch, again?" and the reason is simple: I'm not really using Scratch anymore. I'm currently developing a Minecraft mod, and, in the future, I'll probably learn how to use Unity, Godot, or maybe even Unreal Engine, to make my own games, so there'd be no point for me to stay in Scratch anymore. ANYWAYS, have fun with this cancelled build, you're free to do whatever the hell you want with it as long as you credit everyone who deserves to be credited, including me!