Glad you enjoyed it!
Minigames were a byproduct of having a larger team, so we wanted to split up the work and not step on each others' toes. Unfortunately that didn't pan out exactly as planned... But we got there in the end!
Mumei's minigame definitely needs some refinement, I'd love to expand and turn it into a fully fledged Boomer Shooter, though that might not help with your motion sickness problem. And I'm interested in looking into tweaking Sana's minigame to be more complex and less of absolutely obliterating everything using her, but I've gotta hit the drawing board with the team on that one.
Thanks for playing!