www.huff-n-more-puff.com/

The frame upgrade system powers Huff N' More Puff's bonuses: 6+ Hard Hat scatters trigger Free Spins with 6 turns and initial Straw Frames on trigger spots, where more Hats upgrade to Stick (2x-8x bets + mini/minor jackpots) or Brick (10x-250x + major/grand up to 5,000x), ending with houses revealing prizes; retriggers need just 3+ Hats for +1 spin. 3+ Buzz Saw scatters spin the Bonus Wheel for jackpots (mini 20x, minor 100x, major 1,000x, grand 5,000x) or features like Buzz Saw (saws pre-fill frames for 6 spins), Mega Hat (giant hats cover areas in Straw before 6 spins), or Mansion (all Brick Frames for 6 spins max wins).