She along with Jumbo Josh are the only characters whose monster forms appear in every chapter, outside of Garten of Banban IV. Sheriff Toadster mentions that she and Tarta were actively "looking for something". It can be assumed they're looking for their baby. Opila Bird does not appear in her walkway in the final chase in Garten of Banban II, possibly because she is still busy at the nest with the Baby Opila Birds. The scene where Opila Bird falls into the pit is accomplished by Opila being teleported over to where she jumps towards the ledge. Garten of Banban II - IV Opila Bird looks very similar to her Garten of Banban look, only she has gained a scar on her left eye, thanks to the fact she fell in the Ball Pit.

Opila Bird first appears after opening the Colored Door to the rest of the Outer Sector from the Lobby. In the hallway, she creepily peeks her head out from the entrance to the Playground. After proceeding to the Door, Opila Bird can be seen sitting near the Ball Pit entrance and posing as a prop. The Player must insert 6 Eggs scattered across the area into her open mouth. When the Player gives her all six Eggs, Opila Bird produces the Yellow Keycard in her mouth for the Player, which allows them to do the puzzle in the room across, where they obtain the Hammer, giving them a way to enter the Ball Pit. If Opila Bird cannot detect the player if they go off the wooden platform and stand on the ledge behind the fence, she will remain completely still until they become available to be reached by her again. In Garten of Banban II, Opila Bird has a scar next to her beak and eyes meaning that she got a scar after her fall in Garten of Banban. Opila Bird was supposed to originally have a partyhat, but it was eventually removed due to it not being scary or intimidating. (confirmed on X) Originally, the main antagonist of Garten of Banban was supposed to be Stinger Flynn, but he was replaced by Opila Bird.