Thanks for the detailed report, this was super helpful. The kits dropping from the green carrier enemies is intentional, but everything else you saw was a bug. They were supposed to clear at the end of every wave like before, and a last minute change broke that cleanup without me noticing. That's why they piled up, lagged the game and even survived a Voltage reset. The fix is live now in v1.3.1, so if you refresh you should see kits clearing every wave again, which at high speed is even tighter than the 7 seconds you suggested. Good catch on the animation toggle not covering the kits' sparkle too, that fix is coming in a future build.