Managed to get Wave 4 of the fourth level. The little triangles need to be a bit more noticeable, maybe have a trail behind them? Or maybe do away with the 'fog' altogether, as it's a bit hard to see anything. Also, dashing into a pickup at just the right time doesn't pick it up, as well as having it follow you out of the room. The orbit effect needs to be buffed, maybe the bullets shouldn't hit the wall or maybe they should collide with enemy bullets?