Pretty fun timing game! I started on rage mode and reloaded after about 5 minutes of trying haha. I did beat it on chill mode though! I have some suggestions for improving the game - could be helpful if you are planning to work on it more after the jam:
1. Add some more patterns on the background wall. I thought it was fun using it as a reference on where to safely stop but variation I could use was far and few between.
2. Either make collectables meaningful or remove them. Understood they were implemented to meet the jam limitation, but they don't add much. In fact, just by playing you can't even miss them. I think it'd be cool to keep them in the game but have them move up and down so the player has to put in some effort to collect them.
3. Reduce music volume or tone down the bass notes a little bit. It was a bit too heavy.
Good jam submission, cheers!