Great game but there are a few serious bugs:
-Going left from the first level softlocks the player into infinite falling.
-The third level's speed ramps are way too powerful. I nearly flew past the top of the level barrier.
-When you jump, Rem keeps moving even when you're not pressing any keys. (Not strictly a bug, I know, I just think platforming is better when you have a little more control over where you land.)
Overall, however, I enjoyed this short experience for what it was: a game jam game with a vivid art style and solid character designs.