Bust-A-Move 4, known in Japan as Puzzle Bobble 4, is a tile-matching puzzle game developed and published by Taito. No matter which game mode you're in, the objective is to burst as many bubbles as you can. After a period of time, the bubbles that remain descend, one level at a time, toward the Deadline. The game ends when the player clears all bubbles on the screen, or when a bubble crosses the Deadline, resulting in a loss.

somyeol plays as Gigant in the Story Mode of Player vs Computer, on Expert difficulty. somyeol has also done a TAS playing as Cleon, which you can watch here.