Really cool game, plays well, looks awesome, good sounds, nice music, really good! Really like the detail you put in the vector images. The moving crystals in the gun, the trail behind the ring bullets of the enemies, the moving parts in the scenery. Lots of eye for detail.
Still playing, but I was frustrated by two things so I had to post them here directly.
1. The jumping as mentioned below is annoying. It takes 1 to 2 steps before it responds which annoyingly let's you walk over the edge before it responds.
2. I think I'm in level 3 now, with the revolving square ring near the end. I was in the tunnel right before the big amount of bots spawn and I think I got killed through the floor, I couldn't see any bots near but still got hit by the ones below, while I was not close enough to the edge to be hit.
3. Not completely sure, but I sometimes have the feeling enemies explode before my bullets hit them. It could be the bullets are just too fast, but it feels constantly they are dying a bit sooner than they should.
Resuming play now ;-)
Can confirm the shooting through the floor, indeed you get shot through the floor, which is annoying, because you can't really get close to the edge to take out enemies, because they can shoot you before (and after) through the floor. I now just raced through it without killing them, which is a shame because it's so satisfying to take them out.