The basic idea of a platformer, hack and slash and speedrunning game combined is a fun idea to explore.
Sadly the game suffer from a few “little” mistake that I feel make the game not so fun as it could be.
Staircases/blocks leading to a platform not visible from above, and holes in the ground should have clear distinction between them. Stepping from a ledge, when you already see that the game sometimes steps you from a ledge, just to walk into a hole and die is not fun.
After the snaking back and forth zombie part, you have the same grass as you use on top of the platforms in the whole, which is really confusing as the player is just gonna walk into a hole, because you are signaling ground their with the grass.
Collision is kinda wonky at time, but in the end it is not THAT of a big deal, still confusing on hit and getting hit ranges though.
Music getting TOO loud is also a huge issue, please check your audio level next time.