Bug: Upgrade - keep money after earthquake does not work;
Bug: sometimes game suddenly spawns tons of garbage at the middle of map.
as far as i can tell, the latter is actually the implementation of the former; you “keep money” by getting a bunch of low value garbage that adds up to the kept percentage.
imo these need to be higher density; low tier 1 point garbage just ends up flooding the map and there’s nothing you can do about it, and you can’t remove upgrades