This has to be one of my favorite enemies yet. It came out exactly how I imagined, so that's a big plus.
The concept of this enemy is based off my experiences of playing Mega man games. In those games, often enemies would take pot shots at you while you were trying to make tricky platform jump. Being hit with one of these shots would probably result in a falling death, because Mega man would experience a recoil when hit. I found that to be quite cheap.
Since getting hit doesn't effect movement in this game, I thought it would add extra challange rather than being unfair or cheap. Than again, I guess we'll just have to see how it turns out when the level is complete[evil]