The positive: I like the concept. I could see it being a mobile game with a ton of ads that could keep someone entertained while they're stuck somewhere that they don't want to be. The art is fine, nothing to write home about, but passing. The movement of the axe is believable and I like how it bounces off of the walls.
The negative: The sound was glitchy when I played in-browser. Sound effects from previous levels were getting stuck on a loop which was very annoying and ultimately made me click out of the game. The music was too intense and repetitive. I don't even think it stopped or changed when I was in the menu between levels. I was annoyed with it by level 3. The dotted line aim system didn't seem very accurate. I would've been happy to play the game without it versus trying to rely on it and having it not quite work. There was no real story to the game (which is fine for a mobile game but wasn't really up to par with some of the other games in the competition that were more engaging due to the storyline/backstory).
Over all: For what it is, the game is just fine. I wasn't excited to play more after level 2. I played through level 3 just to get a good feel for it but I wasn't excited about it. Maybe to the right audience with some small improvements, it'd be a good mobile game for ad farming.