Hey, this is a fun game.
I unlocked 3 characters, but couldn't make it to the rest yet.
I found impossible jumps a couple of times that couldn't be reached even with double jump.
Also, that speed up ability is a double edged sword!! XD
Good job!
Thank you for the feedback! The jump distance is a little intentional. They can be done with a pixel perfect double jump. It is a bit evil, but I left it regadless.