A TwoPointFiveD [[AddedAlliterativeAppeal side-scrolling submarine simulator]] from Creator/{{Nintendo}} for their [[Nintendo3DS 3DS]]. You pilot one of three subs (an adorable little compact sub that can [[BoringButPractical fire torpedoes vertically]], a medium-sized submarine which is JackOfAllStats, and a [[CoolBoat four-torpedo-tube heavy sub]]) through a variety of stages, dodging depth charges, naval mines, and [[HotSubOnSubAction enemy submarines]] along the way. A gyroscope-enabled periscope minigame and a multiplayer turn-based strategy mode round out the package.
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!!The following tropes appear in this game:
* BoringButPractical: Sure, the small sub only has one torpedo tube, no pitch wheel, [[ArsonMurderAndJaywalking and is painted a rather ugly color]], but as it turns out being able to fire straight up comes in handy.
* ExcusePlot: [[ExtyYearsFromNow In the year 19XX]], a rouge nation threatens world peace. A coalition submarine force has been assembled to take them on. You're part of it.
* HotSubOnSubAction: Inevitable, really.
* TwoPointFiveD: Only it's in stereoscopic 3D, which makes it... 2.75D?
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