Balan Wonderworld is such a wonderful pile of nonsense. It has all of these different power-ups, but a good portion of them are just different ways to shoot or jump. It feels like it was made for small kids, but there's no way a kid could get through some of the difficult parts toward the end. The absolute lack of any explanation as to why anything is happening. I love it so much.
Sweet, although it's not like I need an excuse to buy more games on Steam.