World 4 is a beach-themed world.
- There are 5 Normal Levels (at level 5 is Yoshi, screen in which there are lakitus)
- An Extra Level (after level 1): Confrontation against a Porcu-Puffer.
- A Tower (after level 2 and 3), where you face Wendy O. Koopa for the 1st time. The boss throws hoops and jumps.
- A House of Ghosts (after level 4).
- A Castle (after level 6 and the House of Ghosts), where you face wendy O. Koopa for the 2nd time (in a room that is constantly flooded). The boss throws hoops and jumps.
- The Air Fortress (after the Castle), where you face bowsy for the 1st time (mounted on a cup with propeller). Bowsy throws fireballs. The player(s) get a propeller block(s).
- A secret canyon (after the Tower). To get there it is necessary to find the secret exit of the Tower. It nails you to the world 6.