She is fought in Ganbare Goemon 3: Shishijūrokubē no Karakuri Manji Gatame and Goemon's Great Adventure.
Bis maru Elegant appears as the first giant robot fight in Ganbare Goemon 3: Shishijūrokubē no Karakuri Manji Gatame. She is controlled by sister Bismaru, with whom she is designed after. After a brief introduction, Bisumaru actually takes a moment to throw a rose at the player in a manner of taunt and then commences the battle properly.
A couple of her attacks consist in her concealing her head and limbs inside and attacking only with her body in a manner of giant wrecking ball. At this point, she can either launch herself toward the enemy to crash with them, or hover from side to side while firing an array of missiles. These can be punched in midair in order to recover 5 ryo for each one destroyed. In another attack, she rushes toward the player at great speed and unleashes a barrage of punches.
Her trademark attack consists in quickly exiting the screen's field of view and then emerging from below, at which point she will start kissing the player's giant robot, inflicting 30 points of damage with each kiss until she is punched back.
If defeated, her head (where the cockpit is located) detaches from the body and serves as a flying escape pod.