Crazy Arcade or Boom Online has a gameplay similar to Bomberman of Hudson Soft. The aim of each game is carefully planting the bubble bomb and try to kill the opponent when the bomb explode.

There are 11 main characters: Boz, Dao, Diz, Moss, Ike, Melvin, Evie, Plunk, Santa, Lodumani, Shao so player can choose whoever they want to play as. There are 8 players in one game. There are standard mode, which players are divided into team to fight each other. Or free mode, where you can freely choose your team (maybe 1 vs 7 or 4 vs 4). In mission mode, 4 players team up to kill one boss. There are 100 maps for standard and free mode and 7 mission map.