One of your fists turns into a torpedo. First, press the C Key or the Right
Mouse Button to arm it. Then press the Button again to launch it. Next, use the directional arrows or the left analog stick to direct it. This fist is very useful for reaching targets that are very far away.—Manual (PC version), Rayman 3: Hoodlum Havoc
The Shock Rocket is a temporary power used on several occasions by Rayman in Rayman 3. It is provided by the orange cans of Laser-Washing Powder and allows him to shoot a guided missile which can be used to defeat enemies and trigger mechanisms. It lasts 6 seconds. Rayman first chooses the direction, then shoots the missile, which triggers the countdown as if he was not standing near the can any more. Then, the player has total control of the missile until either the effect of the can is over or the missile explodes against something. Using the missile in battle is effective and avoids direct combat, but may require being hidden in a place where Hoodlums cannot find or shoot at Rayman, as he is vulnerable to attacks when in control of the Shock Rocket.
When he acquires this power, his hair, gloves, hood and base of shoes turn blue, while his body and shoes turn orange. His right hand has a launcher-glove with a big orange and blue missile attached to it. In a French and German ad for Rayman 3, Rayman can be seen using the Shock Rocket without changing his clothes.
A glitch including the Shock Rocket is triggered when the player enters the snapshot mode and fires the rocket. This allows the player to control the missile indefinitely and to pass through walls.