The Steel Diver is a shooting item introduced in Super Smash Bros. for Nintendo 3DS/Wii U. It was revealed on Masahiro Sakurai's Miiverse page and simultaneously on the current Super Smash Bros. Official Website. It allows the user to fire small but fast torpedoes at opponents.
Each torpedo deals 14% damage and decent knockback, and travels less than half the length of Final Destination before exploding. The Steel Diver holds ten torpedoes, but only two torpedoes can be on the field at a time. The torpedoes travel extremely fast, but travel slowly for a few seconds after being fired, making it easy for opponents to shield, avoid, or reflect.
This little brown sub is known as the Manatee. It's agile and equipped with vertical-launch torpedoes to attack enemies above. The Blue Shark handles very well. Finally, the Serpent, a large, stealthy sub, is hard to control but well rounded. Take your pick, and dive into a 3D ocean battle.
This weapon is modeled after the ND-03 Blue Shark, a balanced submarine that appears in Steel Diver. It fires small, torpedo-shaped projectiles that pick up speed as they travel horizontally. Don't dismiss them based on their size--these tiny shots pack a punch!
- 3DS - Steel Diver (03/2011)