I absolutely loved it. There are some similarities with my game by the way. Anyway, I lost at night 20; I just couldn't spend my mornings building spikes and my nights fighting for my life. I just wanted it to end :D 
Great job!

Think you were too hard on yourself, I really enjoyed this! Found the enemies intensely stressful, if there was a little audio in there it would be genuinely scary. The animations were great too, you could definitely take that scribble animation idea and make it work in a full game, the damage scribbles were really effective (and a little horrifying). Building works well, thought I'd been super smart and surrounded myself with barricades only for them to smash through after a while.

Overall, great job!

Interesting concept with the enemies. I liked how it visually shows with every hit, the character getting "corrupted". The addition of building traps between waves is cool too. With some polish on the game play and some sounds added in, this game could go a long way! Nice job!