Power Stone
Creator(s): Capcom | Release: 1999-2000
Power Stone is a 3D fighting game.
The franchise consists of:
Power Stone (1999) which was released on the Dreamcast.
An animated TV series Power Stone consisting of 26 episodes and mainly follows Falcon.
Power Stone 2 (2000) which was released on the Dreamcast.
Notable Gameplay Mechanics
Power stones can be collected during combat and if 3 stones are collected, the character will transform into a stronger version of their character for a limited time
Stages have different elements that can be interacted with including benches, poles, ceilings, and walls
Power Stone 2 adds moving stages which adds some platforming mechanics
Power Stone is a 1v1 while Power Stone 2 is a 4 player free-for-all.
In 2006, Capcom ported both games to the PSP under the title Power Stone Collection. This collection contains slightly updated version of both games with additional content, namely:
Kraken and Valgas from Power Stone can be unlocked in Power Stone 2.
Accel, Mel, Gourmand, and Pete from Power Stone 2 can be unlocked in Power Stone.
I recommend playing Power Stone Collection.