Boss: Bowser
Mission: Bowser's big lava power party.
Difficulty: 5/10
Attacks: Punch, meteroites, flame breath.
How to defeat: Dodge the meteorites Bowser throws by avoiding the red spots. He will then aim for a punch.
Once he punches the meteorites will become like the ones you saw earlier. Hop on one and launch it at Bowser to injure him, but don't hit his shell as it will reflect it. (Pro tip: Make sure his punch does not hit the meteorites so you have a better chance at hurting him.) Go grab a coin if you are hurt as he recovers from the blow. Hit him once more with a meteor to get him mad. Now after he throws the meteorites he will use his flame breath. Make sure to avoid the trail it makes. Now Bowser will punch again, go and hit him with a meteorite. Do this twice to make him cough your valuable Grand Star.
Watch as he escapes once again, with no sign of Peach. But you are rewarded with another Grand Star and a portal to world 3!
How to defeat: Surprise! The planet you were just on was the boss! Sneaky little guy eh? Anyway, his weak point is his big red nose. When you get the chance, spin to hit his nose. Do this again to make him roll faster. Hit his nose once more to defeat him. Go and grab your star!