The Pawn Fever can only be utilized during the Egg Dealer boss fight. It is activated when three slots on the Egg Dealer that correspond with the Pawn Fever icon align. When used, the Egg Dealer summons a couple of Egg Spear-wielding Egg Pawns.
In gameplay, if the player fails to hit any of the slots on the Egg Dealer, they will eventually align with the Pawn Fever slots, allowing Eggman to call in Egg Pawns to assist him in battle. The player can also not initiate Pawn Fever manually.