UFO (シーカー, Seeker, in Japan) is an enemy that appears in Bomberman 64. It is designed to repel intruders from the Black Fortress. It moves very slowly and aimlessly, flying high above the ground and thus evading both Bomberman and explosions. If Bomberman comes too close, UFO will stop and fire a laser directly beneath itself. The laser will harm Bomberman and detonate bombs on collision.
Because it is a robot, UFO cannot be stunned by kicked or thrown bombs. It takes one bomb blast to destroy, but it is normally too difficult to hit it with anything other than a mid-air Pumped Bomb explosion. In Hard Mode, it moves and fires more quickly, and takes two bomb blasts to destroy.