If Terry is over 100% damage, or has less than 30% of his health in Stamina mode, and the player inputs either ↓ ↙ ← ↙ → + Attack/Special or ↓ ← ↓ → + Attack/Special, Terry will punch the ground, erupting a big geyser of energy while announcing "Power... Geyser!" or "Go burn!". There also exists a shortcut input with ↓ ↙ ← → + Attack/Special, forgoing the downward motion entirely. Using the move will cause the screen to have a blue overlay. The move also gives Terry 5% damage-based armor from Frames 1-14, allowing him to ignore weak attacks such as neutral attacks.
Power Geyser's hitbox lasts for a good duration while also having tremendous vertical range. Power Geyser can hit the ledge, while also 2-framing edges consistently with the correct timing. The tip of the geyser deals less damage than the base, though it is still remarkably strong and capable of KOing opponents off the top easily.
Like Buster Wolf, this move cannot be performed in the air.
Like his normal specials such as Power Wave, Terry can cancel the endlag of his normals into Super Special Moves as well. Up tilt is a particularly notorious move for confirming Power Geyser, serving as a minor anti air that can turn into an immediate stock. This works at virtually any percentage, due to up tilt's very low 18 knockback growth.
Power Geyser was a move introduced in Fatal Fury 2, and has since become one of Terry's signature moves, reappearing in almost every single game the character has been included in since. It first made an appearance as a Desperation move. While maintaining this role in most games, it is a basic part of his moveset in a few games, such as Real Bout Fatal Fury. The command used to perform the move in Ultimate mirrors the command for it in most games.