• Gunrock's Slot mini-game
Get 1,000 medals in a mini-game to unlock the Gunrock's Slot mini-game.

• Play as Pete in Power Stone
Successfully complete the original Power Stone to unlock Pete.

• Play as Julia in Power Stone
Successfully complete the original Power Stone with Pete to unlock Julia.

• Play as Gourmond in Power Stone
Successfully complete the original Power Stone with Julia to unlock Gourmond.

• Play as Accel in Power Stone
Successfully complete the original Power Stone with Gourmond to unlock Accel.

• Play as Kraken in Power Stone
Successfully complete the original Power Stone with all characters to unlock Kraken.

• Play as Valgas in Power Stone
Successfully complete the original Power Stone with Kraken to unlock Valgas.

• Play as Final Form Valgas in Power Stone
Successfully complete the original Power Stone with Valgas to unlock Final Form Valgas.

• Bonus weapons in Power Stone
Successfully complete the original Power Stone to unlock the following weapons: Machine Gun, Nyoi-Bo, Power Shield, and Ray Gun.

• Play as Pride and Kraken in Power Stone 2
Successfully complete 1-On-3 mode with Falcon in Power Stone 2 to unlock Pride and Kraken.

• Play as Valgas in Power Stone 2
Successfully complete 1-On-3 mode with Kraken in Power Stone 2 to unlock Valgas.

• Play as Mel in Power Stone 2
Successfully complete 1-On-3 mode with Pride in Power Stone 2 to unlock Mel.

• Bonus weapons
Successfully complete either game with the indicated character to unlock the corresponding weapon. Note: Pete, Gourmand, Julia, and Accel do not unlock items in the first Power Stone.

Amenomurakuno: Ryoma
Crystal Ball: Rouge
Decoy Bomb: Ayame
Giant Boots: Gunrock
Maches Chainsaw: Jack
Soccer Ball: Falcon
Stone Sweeper: Julia
Thunderbolt Rider: Accel
Totem Hammer: Galuda
Turbo Helmet: Pete
Twin Potion: Wang-Tang
Wok Gun: Gourmand