Monty Mole Snowland
The first level of World 4. It has Monty Moles, Paratroopas, Ice Bros. and Spike Balls.
The first part has Flipruses and snowballs. The next part is on a frozen lake.
Boo's Frozen Ice Palace
A level with falling ice blocks, Boos, and Magikoopas
A cave level with icicles, Cooligans and Coldboos. Fire and Ice are on their tower at the end.
A level with Fire Bros. and Ice Bros. There's also a elevator. The boss is Fire and Ice.
A level with red, green, and white pipes. It has moving mushrooms and Broozers.
A forest level with Lakitus, Piranha Plants, and Yoshi
A level with Para-Bombs, Paratroopas, and moving mushrooms. Lemmy's ship will be circling his castle at the end.
Lemmy's Shifting Castle
A castle with conveyors, shifting platforms, Thwomps, and an Ice Snake Block. The boss is Lemmy