This engine is going to be used for a 2D scrolling Fortnite remake. I'm considering adding a system that allows for going from level to level, like an elevator. (For example, if you're in a two-story house, you can go from the first floor to the second) Use the arrow keys or WASD to move. This is virtually infinite. It only uses 3 clones, meaning that it won't take up much space.
@Spentine for lots of help with this! -------------------------------------------------------------------- NOTICE: This engine isn't technically infinite. It uses a list to store which costumes will be shown in which order. Lists can store millions of items, so unless you need millions of costumes to be shown, then it should be "infinite."