I didn't know Rounds but it looks good, inspiration on Ability Stacking come primarily from Vampire Survivors like games such as Bounty of One. Visual style inspo is from Tiny Rogues (amazing game) and old side scrolling shooters.
I'm glad you enjoyed it, I'm happy with how it turned out, only problem is that when reaching 60+ loops it becomes pretty hard to understand what's happening and game balancing is not that good