Bash the zombies!

first, theres no sound and no animations.
0 stars.

Cool.

Edit: Sure, i would love an update!
You could add an WASD movement because the arrows movement make the page scroll up and down, you could redraw the spikes and grass, because it looks kinda different to the style of of the game (I think the game has a pixel style, sorry if i am worng)
Add some music and make animations for the characters.

So, I was only able to get past the first level until I got stuck. I can't really get through the door in the second level after I unlocked it, I've pressed every button trying to figure it out.

After giving up on the door, I went back down the elevator and jumped over the spikes to get to the very lowest level, where the dirt stairs lead down to the hall filled with zombies. I couldn't get through, because the bottom of the stairs and the top of the platform were too close together.

The attack is kinda finicky as well, sometimes it just doesn't work, which is an issue when a large horde is coming towards you.

Other than that, I would like at least some variety in the sprites. Maybe just a jump animation, or walking animation to help keep the eyes focused. It could use some noise too, or else after awhile it starts to feel barren.

The art needs some working on. The diagonal lines give me a bit of a headache. There's too long of a delay for attacking. The collision is a bit wonky. Other than that, not the worst thing I've seen so far.