I liked this game a lot! I thought it was very impressive with how you had no idea what enemies would appear next. Medals always motivate me! The music was great now that I listen closely to it. I thought I'd be able to beat at least one boss. This was just a great game.
I don't know how these levels, or rather rooms work. I'm sure they're all random. It gave me a great sense of exploration. I'd think a game with shells would feature Mario. It's fun in any way.