I found some bugs and errors! ( run it from the rar executable)
So in the new area just before the slime king boss there is a drop with large spikes, and hitting one sent me to this nowhere land, not sure what happened but ı had to quit and renter to spawn by the nearest fountain.
A less important issue is a big amount of lag in the first, second and third parts of the new area, not the upper secret one to the left, maybe a water rendering issue
The giant tentacle boss in the humility caverns has a spawn error where the fountain above him isn't where you get teleported to when fast traveling
And apparently there might be another with the lamia queen as well but ı couldn't recreate it.
But basically when dashing into it while it is reemerging, a collision box error occurs and the player clips through the wall
Also, kinetic energy + sonic boom + blooming heart (explosion on impact) + maid basically kills the last boss in 5 seconds, maybe I just found the best strategy but still, maybe to op with too many connection points it spam attacks him when passing through him, like 50 times