This is a good intro metroidvania for kids, I say as someone who's never played another metroidvania before. I think this game has awesome sprite art and really funny character designs, but I felt like the difficulty scaled really fast near the middle of the game. I remember getting stuck at the 3rd or 4th boss because I just did so little damage to it and it took huge chunks out of me when it hit me. Maybe now that I'm older I'll be able to beat it.