I've played too many stages of MM7 today to comment much, but these are the ones I've cleared since going through Cloud Man's level: Junk Man, Spring Man, Burst Man, Freeze Man, and the miscellaneous boss at the Robot Museum.

That leaves three bosses to go before whatever Wily levels this game has.

After being impressed initially, the game has been kind of underwhelming. It seems mostly better than MM6, but I find myself missing the NES graphics and play control. On the plus side, enemy sprites are extremely detailed and levels do look excellent for what they are.