Inside a Whale is the 4th story mode world in Super Monkey Ball 2. Levels are presented inside of a seemingly gargantuan whale that has swallowed cities and roads. Inside a Whale reappears as the last world of the expert stages, replacing the levels from story mode's Space Colony. It has immense difficulty and it's stages are: 4-1 Pro Skaters 4-2 Giant Comb 4-3 Beehive 4-4 Dynamic Maze 4-5 Triangle Holes 4-6 Launchers 4-7 Randomizer 4-8 Coin Slots 4-9 Seesaw Bridges 4-10 Arthropod