Here some more reports for you:
Homing shots are fun, but since they force all shots to hang around until they expire, it can get very laggy. Not as bad as rainbow bullets, though.
The best part is when the final boss is surrounded by a swarm of homing shots and their splits, decides to use its spawn attack and then dies instantly due to every single bullet causing an explosion on every slime at once.
The emergency shield that is supposed to protect your HP under 25% does not work on leeches. Not sure if intentional.
Pausing the game while energy is charging(without optimized pod upgrade) causes a funny noise.
Once the owo uwu star power picked a random spot on a water map and decided to circle there for all eternity.
Black holes can drop you off on mine fields. Very mean.
The jellyfish main body target stays active even after it dies as long as one of the tentacles is alive, it seems.
The PEG/Ahegao can show up twice in the same shop roll, buying the second one does nothing, naturally.
Penny pincher hand, whatever that is, crashed my game in a late-game water level.
Unable to find instance for object index 4
at gml_Object_Penny_Pincher_Hand_Step_2
gml_Object_Penny_Pincher_Hand_Step_2 (line -1)