Well..
World 1 Bowser was way too easy. If you're Super or Fire Mario, you just run straight through him and jump on the switch.
World 2, the Mummipokey, wasn't too difficult, even as Mini-Mario. The only thing that really bothered me was trying to get through the stage itself as the mini.
World 3, I beat on my first try, but mum kept dying against him, but that's because she was always normal Mario.
World 4 angered me a little bit, but he was easy once you got to the switch. Mr.Goomba was standing over it half of the time.
World 5 actually didn't give me any problems. He was easy as normal and mini.
World 6 was a test of patience, not skill. When there were 3 cannons, they were slippery and I had a hard time getting up to him. But you're almost impervious to his attacks as normal Mario, if you have common sense.
World 7 caught me unguarded and managed to kill me the first time, but if you run around a lot and have a good sense of when to jump with his spiny and diving attack, he's easy.
World 8 Dry Bowser I was expecting, due to him turning into a skeleton from his first lava plunge. Basically, be Super Mario and run straight through him and jump on the switch. Simple.
World 8 Final, Fire Flower for the win. Nuff said.
Just to be fair, I voted everyone, as they all didn't put up much of a challenge.
