Grand Bomber is the least intelligent of the group; easily being confused by what others say. Grand can use a Clay Bomb which is a green bomb that has an earth attribute. When he summons his battle stage, his body becomes covered in spikes and his stage is a field where crops are planted. Since fire is strong against earth, Grand Bomber is disadvantaged against Shirobon.

His name is frequently confused as "Ground Bomber", due to his earth elemental attribute.

[Source: Bomberman Wiki]