This is a scrolling platformer engine! You can remix to change the player, change/add scenes, and change/add objects like checkpoints and collectibles. I have tried to make the game as easily changeable as possible so that it's not too tough to edit. The "Checkpoint" sprite isn't necessarily a collectible, but the scripts can easily be built upon to make collectibles. WASD or arrow keys to move around, and the white flag is a checkpoint, so don't forget to touch that! Currently there is no wall jumping, I haven't quite got that figured out yet, but I'm open to suggestions if someone has one!
Some scripts are modified versions of @griffpatch's, but only a few work in the same way. I hope this project was helpful if you were looking for a basic scrolling platformer engine to build upon! I have included comments on scripts to help people understand them a little better. Also, please notify me of any bugs, I will try my best to fix them.