So, it seems I'm not able to give Arachne the Arachnoburger?
From your other comments, it seems you are supposed to interact with the hole in the wall once you have it, but nothing happens and the burger is still in my inventory. Also, if that's the case, then the hole should be marked with the sparkling effect and there should be some textbox when you interact with it, like "I'm waiting for my burger! Bring it to me!"
Also, the chases are way too hard. The first Arachne one could use more of a headstart and the second one in the underground maze... I've played through that one 5 times so far and haven't managed to get through it yet.
It's good that you allow to skip endings you've already seen though. I got two, the Death one and the Police one.
Also, the cracks on the walls aren't set up properly in the tileset, you can walk on them.