Here’s my little feedback: the only thing I didn’t like was the reaction chain/supernova sound, it just rubs me the wrong way (especially in late game where you chain these sounds)
The new supernova sound is live in v0.2.3: lower, softer, quieter, and it can't stack up as fast in the late game anymore. Let me know if it sits better now! Also, 100% in 1:20 h is faster than I planned, so that's really useful for balancing.