Arrow keys to move/decide what attacks you use. Space to jump. Z to attack (for newcomers, depending on the arrow keys you press, you can do different attacks with different arrow keys). Z + X for your "Final Smash" (again, for newcomers, basically your "Super Move/Ultimate Attack"). For now the Z and X keys broadcast messages for the attacks, but that's it. However, you can animate/add the attacks with a little bit of programming. You can also use this to showcase movesets.
Platforming engine by ShadowCoder. Combo engine entirely by me. If you have another combo engine with the exact same blocks, pure coincidence (trust me, I never take things without giving credit). For joshieman2008. I guess I'm part of Super Scratch Bros. Ultimate now, am I? Just an act of generosity I made for interest in this project. You really got my attention now! :) I learnt about this group by Espeo788. Please give credit to me in the group description if you use it. Wow, I think I did this in under 3 hours. For such a complicated project. Wow.