This game is fun. The art and music used is fitting and there are quite a few of unique mechanics/powerups. The controls can be improved though. I think it's not clear when the players can jump.
Though, I got stuck on the second stage (the one where the two characters are standing on each other). I can let the blue character enter the portal, but not the red character. The velocity of the characters when they are standing on each other is not consistent.
I think it's a fun experience overall. Great job on finishing the game jam!