The Fishin' Frenzy Prizes Lines slot machine now features the Prize Lines gameplay mechanism. To create vertical or horizontal lines of matching fish symbols in this 5x5 grid game, spin five times in a row or column. After using your block, if you'd like, you can spin one more time to try to boost your combination. You must fill 8 or more lines in order to unlock the extra spins feature. For each fish caught in this round, a monetary prize is given.