Though the creature above may look like a real killer whale, or at least from the side profile, it's actually a personal submarine from Hammacher Shclemmer. Its powerful 255-hp supercharged Rotax axial flow engine enables realistic behaviors such as porpoising or skyhopping. Riders control the craft with a finger on the right lever's throttle trigger and steering is provided by dual foot pedals. Click here to view the first image in today's viral picture gallery. Continue reading to see the killer whale submarine in-action.