It needs a long platform. Swim back to it jump so you don't drown and enter the door.

On World 4-tower, When you go into the place where the metal blocks are falling and you have to wait and jump up them, you wait for only a few blocks to fall and then you jump into the greenish part and you will go inside a secret cavern in the wall. Go to World 4 Castle, First of all, you need to be at least 2 players and 1 of them must be Ice Mario.

To unlock zero suit samus, you must get the smash ball with regular samus and do her zero laser final smash. To get these stickers complete classic mode on easy. The crew talks about their favorite Nintendo consoles and the memories they have of them.