The movement scheme threw me off, and the game description has a different "right move" key than in-game. It makes the game a bit harder but not more fun, I have to say.

It's a fairly standard set of mechanics, move, shoot, avoid damage, wome enemies track you and others are more like static obstacles. I'd call it a good start in the genre, but needs a lot of smoothing on the gameplay.

Also for the floor, any kind of border/texture on the tiles would have made it easier to tell where/how fast we are moving.

Uhhh what's happening ? Why is it so slow ? How can we ecit the rooms with the monsters ?

I think the game is really fun. But the controls make it really really frustrating so i would recommend you to add W A S D as the controls. Others everything is good about this game. i think adding a story would be better.

Hey.  I have a few suggestions for this game.

I think the key combination that you should use, as most people are familiar with it and expect it, is either arrow keys for movement, or WASD for movement. W=up, S=down, D=right, A=left.

When  I played it, there weren't any enemies to shoot at, it would be nice to have some, in case there aren't any.

Also, the bullet speed should be much faster, and it should be be released instantly after clicking.