The Sticky Win™ feature in Jack Hammer™ 2: Fishy Business lets you build on a winning combination. Winning symbols lock in place, and the reels spin again. If more wins appear, they also lock, and another spin follows. This continues until no new wins land, after which all locked wins are paid. Changes in game behaviour highlight when Sticky Win™ mode is active, creating extra anticipation with each spin.

Jack Hammer™ 2: Fishy Business features animated free spin symbols, triggered when 5 or more appear anywhere on the reels. Free spins play at the same bet level as the triggering round, with a sign showing how many spins remain. Wild labels can appear randomly, symbolising the battle between Jack Hammer and Don Crabby. All bet line wins during free spins are doubled, and 5 or more free spin symbols award additional spins. The round ends with a win presentation before returning to the main game.