Hehe, shotgun flying is a great “secret mechanic”. I believe once you get 3 upgrades, you can pretty much fly around at your leisure. Bonus points if you find out where to escape the map to get out of bounds ;)
As for the decals: yep, turns out setting the alpha blend mode on hundreds of objects at the same time is expensive! Learned something new :D
Good point about the explosions. We deliberately made them non-hurting, but that should be signposted better in-game somehow!
Thank you very much for playing the game, and I’m very happy you enjoyed it so much <3