Smoke, a good way to represent rumbles, explosions and such.
But there’s a thing that annoys me:
Usually, because of blinding smoke, it’s about 75% of the cases of why I pick a weapon I didn’t want to get and about 50% of times why I die in boss waves via a hidden egg, chicken etc. (mostly Chicken Multiplicity).
I’m talking about smoke that appears when you destroy a boss and that stays on screen for about 3-4 seconds and then you wind up with Ion Blaster in the middle of a battle with Twice Infinity.
My suggestion would be either to make it semi-transparent, speed it up or make it smaller because it really messes me up quite a lot, and probably, most likely, other players too.
Another solution would be to make powerups and weapons and eggs and chickens overlap the smoke in the background, that way we could see it without any graphical modifications.