The Last Stand in Happy Hill currently has only 10 ratings. I found this game to be absolutely hilarious!
Hababam is also very funny, and the accompanying YouTube video that explains where its inspiration came from is bizarre and brilliant. It has 18 ratings.
I wish I could recommend more, but the majority of games that I tried that had very few ratings were broken and wouldn't load, or they didn't have anything to download (and they weren't browser games, they were meant to have something to download).