Alright, I'll critique it. I have not downloaded it, so I am only going off what I see and have read. It seems like there are only two things to do here, activate lever and fight zombie. Seems a little lacking.

The penalty should be steeper and more interesting than spawning a zombie. Like, use a command block with the nausea effect on the player, spice things up. It will be more challenging to fight a zombie with the warbling view.

There isn't really a goal either. I mean yes, getting thru the door is your task, but what then? Is that all that they have to motivate them, the satisfaction of completion? And there's no replay value, since I'm assuming once you know which lever it is, the game becomes too easy.

The arena is simply flat and short, nothing stands out. Take off the ceiling, cause its too low and it makes the room look small, and add some obstacles in there.

Maybe add more rooms after the door, with more levers in that room. Maybe have rooms with different inputs, like instead of levers in room two, its buttons. And instead of levers in room four, you have to activate the door by getting a zombie to fall into the right hole to hit a pressure plate. And maybe in the last room, a lever that activates a hidden thing all the way back inside the first room.

I can't really think of anything, sorry! But think of why they want to accomplish this.

Does anybody wanna give me feedback?

Bump

Not insulted but how may ask can i improve it?

Not to insult you but you might wanna add in some stuff to make it more fun, cuz the goal of the game (flicking levers) is somewhat boring. Especially since all the game does when you do it wrong is spawning zombies