Power fist (Fallout)

The "Big Frigger" Power Fist or Power Fist, is an unarmed weapon in Fallout and Fallout 2.

Characteristics
It likely works similarly to the Super Sledge, with energy cells powering a kinetic energy storage device to increase knockback. An improved version of this weapon is called the Mega Power Fist.

Fallout 2

 * NCR Bazaar, stolen from Lenny
 * Vault 15 Level 3, found on Darion Guard's corpse
 * Mariposa Military Base Level 2, found on Super mutant's corpse
 * Mariposa Military Base Level 3, found on Super mutant's corpse
 * Broken Hills Downtown, reward from Francis if you beat him at armwrestling
 * Willy Special Encounter, possible purchase from Willy
 * Robber Cave Random Encounter, found on Robber's corpse
 * Bounty Hunters Random Encounter, found on bounty hunter's corpse

Behind the scenes
The Power Fist was a late addition to Fallout. Balancing for various forms of combat went on until very late in the game, when it became clear that characters specializing in unarmed combat couldn't keep up with the damage output necessary to finish certain battles near the climax; even when scoring critical hits, unarmed attacks rarely penetrated armor or did enough damage to keep the Vault Dweller competitive. Various "unarmed" weapons were added as a result, but initially only the brass knuckles and spiked knuckles were included. The Power Fist was included as a final upgrade, a natural addition to Power Armor, and a thematic tie-in to the power-assisted hand-to-hand combat portrayed in some dystopian futures of science fiction, such as Warhammer 40,000..

Appearances
The "Big Frigger" Power Fist appears in Fallout and Fallout 2.