Rowdy Raft is a circular-shaped wooden raft with a hole in the middle that has barriers along the outside of it. The only way to get opponents out is by hitting them into the hole. If a player gets hit into the barriers, they will bounce off them into the hole in the middle.
There is a harder version of this court, which can be unlocked by playing in this stage 20 times. Instead of barriers along the outside of the arena, there are barriers surrounding the hole in the middle and four triangular shaped barriers along the outside. This makes it harder to knock opponents into the water. The raft will also occasionally tilt to one side, making it harder for players to control their movements.