From StrategyWiki, the free strategy guide and walkthrough wiki

Snake needs to be unlocked

The master gunman from the world of Metal Gear Solid makes his debut in SSBB.

Contents 1 Standard Attacks 2 Special Attacks 3 Taunts 4 Final Smash

[edit] Standard Attacks

Wii Remote + Nunchuk	Wii Remote (sideways)	Wii Classic Controller	GameCube Controller	Standard Attack	Info
Smash +	++	(Smash +) or	(Smash +) or	Fires a rocket launcher at the ground in front of him.
Smash +	++	(Smash +) or	(Smash +) or	Fires a mortar straight up.
Smash +	++	(Smash +) or	(Smash +) or	Plants a land mine in the ground.

[edit] Special Attacks

Wii Remote + Nunchuk	Wii Remote (sideways)	Wii Classic Controller	GameCube Controller	Special Attack	Info
				Hand Grenade	Hold the button to hold on to the grenade; release the button to throw it. Tilt the control stick to alter the distance of the throw.
+	+	+	+	Remote Controlled Missile	Use the control stick to steer the missile. Press the shield button to release control of the missile.
+	+	+	+	Cypher	Use as a recovery move.
+	+	+	+	C4	Perform once to set the charge on the ground (or on an opponent!); perform again to detonate it.

[edit] Taunts

Wii Remote + Nunchuk	Wii Remote (sideways)	Wii Classic Controller	GameCube Controller	Taunt
				Whips out a cardboard box and hides under it.
+	( or )+	or	or	Whips out a cardboard box and hides under it.
	+			Whips out a cardboard box and hides under it. Press it for only a split second when on Shadow Moses Island, and Snake contacts Colonel Campbell, Mei Ling, or Otacon on the codec to talk about one of his opponents. If you do this while fighting Falco, Slippy calls him. This works for everyone he faces including himself.

[edit] Final Smash

Grenade Launcher: Snake calls in a helicopter and starts firing grenades with his grenade launcher.Just like in the actual game! You have two magazines with six rounds each, so you better use them all before time passes and you leave your ammo.