The Fire Knock is a Power Formation maneuver and the Remote Power Attack used by Team Rose in Sonic Heroes. When using this technique, Big the Cat throws his teammates Amy Rose and Cream the Rabbit as projectiles from the ground.
When performing the Fire Knock, Big, having entered Fire Combination before-handed, has one of his teammates Spin Jump off his shoulder. Big then uses his Fishing Rod to knock his teammate in baseball-style at his targets with such force that she turns into a destructive fireball. This allows the player to damage enemies, break down doors and destroy other obstacles that can be on both the ground and in midair from afar.
To perform this technique in gameplay, the player must have Team Rose in Power Formation with Big as the leader. The player then has to enter Fire Combination and press the action button (//) to fire the teammates. When used near targets, the thrown teammates will automatically home in on them. Additionally, the Fire Knock can be used up to two times in a row, depending on the number of teammates Big carries.