The main power-ups in the series are falcon-shaped letter icons which will replace the player's default weapon with a new one, such as a Laser Gun or a Spread Gun. There are also power-ups that are actually auxiliary items like the Barrier (which provides temporary invincibility) or the Rapid Bullets (which increases the firing speed of the player's current weapon) in the original "Contra", as well as weapons such as the Mega Shell in the arcade version of "Super Contra" and the Bombs in "Contra III" and "", that are used to destroy all on-screen enemies. The original arcade version of "Contra" used the falcon icons for all of its weapons except the Laser Gun and the Fire Ball weapon, while in the arcade version of "Super Contra", no Falcon icons were used. "Contra: Shattered Soldier" and "Neo Contra" both deviate from this tradition by having set weapon configurations instead.