Base game respin and hook chances
Land two scatter symbols without a third and the base game gets one more roll of the dice: the reels holding scatters can drop one row and trigger a respin on the remaining reels, or a hook can swing in and pull an extra scatter onto the grid.
Random modifiers before a round
Ahead of any free spins round, between zero and five modifiers are selected at random and applied to what follows: More Fish, More Fisherman, More Dynamite Hooks and Bazookas, Start From Level 2, and +2 Spins.
Buying in and the win ceiling
The feature can be bought outright for 100x current total bet, with the triggering spin randomly landing 3, 4 or 5 scatters. Whichever way a player enters free spins, the round is bound by the same rule: reach 5000x total bet and the round ends immediately, the win is paid, and any spins still unused are forfeited.