Mecha Retsutar

Mecha Retsutar (メカレツギラ, Meka Retsugira) is a boss introduced in Kuru Kuru Rotation Robo. It is a kaiju-based Mechanoid created by Dr. Shiro Galileo. It appears as the second castle boss in Galilei Arsenal.

Appearance
Mecha Retsutar is quite obviously based on a kaiju in appearance, most notably Godzilla (ゴジラ, Gojira). Though, Mecha Retsutar appears sleeker and more sharp in appearance, compared to it's concept art.

Personality
Unlike most of Dr. Galileo's creations, Mecha Retsutar is mindless and seems to only want nothing but destruction, though, it is subservient to Dr. Galileo. However, Mecha Retsutar also shows some strategy in it's fight with Gyro.

Trivia

 * Mecha Retsutar is noted to be based off of Mechagodzilla (メカゴジラ, Mekagojira) from Toho's Godzilla franchise in appearance, particularly it's Heisei period incarnation.