This is free to use, no credit needed Have fun with this, you can backpack it! What this Platformer engine contains: Arrow keys movement - yes WASD movement - no Up arrow jump - yes Space Jump - no bouncies - yes "Red is bad" - yes Ducking - no Going to Next level -yes Wall jump - yes If you know how, you can add more things!
NO CREDIT NEEDED!!! IT'S FREE!!! Credits to @QuocHuy2014 for the music!