Chapter 3-2: Bloops Ahoy
It is found in chapter 3-2 after Francis has stolen Tippi. The Tile Pool is a water level and contains many enemies such as Cheep-Cheeps and Bloopers. Here Mario and company find Thudley the Pixl. At the end of this sub-chapter, Mario must fight a Giant Blooper. The Giant Blooper is defeated by striking the one red tentacle three times either by using Bowser's Flame Breath or by using Thudley to smash them when they briefly appear on the bottom of the screen.