The paltforming was good but I believe it was a bit too hard. I wouldn't change anything in the stages themselves, but I would definitely add checkpoints to the levels. Other than that I also liked the music, but I think it got repetitive quickly.
Other than that, a pretty good submission!
Viewing post in Into The Void jam comments
I've actually just fixed both these issues! Unfortunately though i'm not allowed to post them until the jam is over as this update would greatly change the flow of the game and iirc i'm not allowed to do that during the voting process. If you stick around, then you'll see some sweet checkpoints in the game!