The Flintstones: Rocky Riches Slot by Blueprint Gaming

Third entry in the Flintstones series from Blueprint, and comfortably the most layered. Five paylines sounds like nothing, but the traditional paytable is a sideshow. Almost everything worth chasing comes through the cash collection system split across the reels - cash values on reels 1, 2, 4, and 5, with a collect symbol exclusive to reel 3. When collect lands alongside any cash prizes, every value on screen gets paid instantly.

Fifteen cash tiers run from 1x to 15x your stake, plus four fixed pots: 25x, 50x, 150x, and 1,000x. Land that 1,000x pot with a collect on reel 3 and it pays in full, no bonus round needed. But the system layered on top is what separates this from a standard cash collect game. Each reel (except reel 3) builds a progressive bank as cash and collect symbols land. Once a bank fills and triggers, it forces special symbols onto the reels and pushes you into the bonus - so the banks work as an alternative entry path, no specific scatter pattern required.

Five bank types exist: Expand (adds a row to make a 4-high grid), Boost (adds 1x to 5x to a random cash value), Multiply (applies a 2x to 5x multiplier), Respin (bumps your starting respins from 3 to 4), and Rocky Riches. Up to four banks fire simultaneously on a single spin. Boost and Multiply aren't guaranteed every respin though - their displays can show an X, meaning no modifier that round. The bonus also triggers when 3+ special symbols appear on consecutive reels, and it always launches with at least one bank upgrade active. Every new symbol landing resets your respin counter.

Rocky Riches is the top layer. It triggers through a chance-based mechanism from a collect on reel 3 and activates all five upgrades in enhanced form at once: the grid expands from 3 rows to 5 (full 5x5), Boost locks at 5x, Multiply locks at 5x, and respins reset to 5 instead of 3. That's where the 9,600x cap lives - stacked cash values compounding with guaranteed 5x multipliers across 25 positions. Power Play at 5x your bet strips the reels down to cash and collect symbols only, though any bonus triggered during Power Play still calculates wins from the base stake. Rock Around The Pots kept things simpler with its pot mechanic - this one buries five upgrade systems under the hood and lets them interact.