In The Alien Wars, the Metal Alien appears after taking out Kimkoh while the player is climbing a wall. It teleports in and out and strikes with its tail in-between.
- This enemy does not appear in the NES port, Super C.
- This enemy does not appear in the Game Boy port, Contra: The Alien Wars.
- This enemy was originally planned to appear in Contra 4, but it was ultimately scrapped from the final release.