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Ultraman Wiki
Siren 7500 (セイレーン7500, Sairan 7500) is a submarine used by Team Marlin. Equipped with Marlin Blast Cannon (マーリンブラスト砲, Mārin Burasuto-hō) and engines with water propulsion. Can being autopiloted by PAL. Appeared in episode 21 and OV movie Gaia Again.
Subtitle: Special Submarine (特殊潜水艦, Tokushu Sensuikan)
