Here's a game that pretty much defines mediocrity. I thought it was at least kind of interesting how you used toothpaste and bacteria. I thought it would be more of an educational game. I've played much better ones. I guess there's nothing really wrong with this.
It's just that nothing seems to stand out. The voters seem to agree with me. You could have put in music. That's always a must for games. The sound effects you do have aren't bad.