Okay so first of all, on Qwerty keyboards the controls are still Q and D. This is not a big deal however as Q is to the left of D.
I really like the concept of this game, it looks good and I like the explosion effect where everything is swept out of the screen :) However, I did find 2 issues with it.
First of all, there's an exploit in easy and random modes, in which you can simply keep going left or right, bumping into the enemies, which will then come from only that side of the screen. This is by far the easiest way to get points in this game.
And if I try to play as intended, it seems like the only enemies in the game are the pink slimes that walk in from the left and right. I feel like there's missed potential, there could be more enemies in the game that do different things, which would introduce more variety into the gameplay.
Don't get me wrong, this is great for someone's first jam game, and it would be very cool to see a post-jam version in which there are more enemies, the exploit is taken care of... maybe a more sophisticated scoring system? But what is there is still very nice.