I won’t split some of your video bugs off onto separate topics @Uniqourn because the conversation would get screwed up, with replies about multiple bugs on the same post etc it would get too confusing to work out.
But I’d recommend you post them as their own topics because enemy behaviour (the wall in Docks) and status effect/cheat detection (the weapon swap in Sprite World) are more than Trivial.
The pet skin Mini Flying Stheno, that name doesn’t seem right.
Items 0x4c15
& 0x4c16
The enemy is a Stheno Pet, not Stheno herself, flying or otherwise - the Pet bit is important to include.
…this would make it a Mini Flying Stheno Pet pet skin/stone.