I appreciate the well-thought (and well-communicated) feedback! I'm glad that you enjoyed it overall :) I had some ideas for health systems, but only had one day for the jam so couldn't get to all the bells and whistles. Some thoughts I had:
1. Every 3 levels earns your a backup "life". You can only ever have one backup life though. (Respawn at current level instead of full restart)
2. Collect blank dice along your travels as "lives". The game felt a bit too short for that though.
3. Have two characters at once and toggle between the two. When one is rolling, the other is getting setup to roll.