Hold & Win is one of the most visible mechanics in Enjoy Gaming’s recent catalogue. A bonus normally starts when the required set of Bonus symbols lands, followed by three respins. Newly landed special symbols remain locked in place and reset the respin counter to three.
In Fire Tornado: Hold & Win, the feature runs on a 3×4 grid with 10 paylines. Bonus coins can appear on reels one and three, while the Boost Collector on the middle reel collects all visible Bonus and Jackpot values. A random Tornado Feature can add symbols and multipliers from x2 to x20. The game has four fixed jackpots, with the Grand officially stated at up to 1000x the stake.
Grand Lightning Boost uses a 5×3 grid and five paylines. The Boost symbol increases bonus values, while the G-R-A-N-D Progression tracks filled columns during the bonus round. It also has four fixed jackpots with a Grand of up to 1000x.
4 Express Trains: Hold & Win develops the basic model through four colour-coded bonus modes. Green, Blue, Purple and Red Express each use their own value ranges and scenarios, the Mystery Train can reveal one of the jackpots, and filling all 15 cells adds a 1000x Grand Jackpot on top of the other wins from the round.
Enjoy Gaming’s Hold & Win line is therefore not simply the same bonus game with different artwork. The three-respin foundation recurs, but Collector, Boost, Train, Wheel, Stepper and jackpot features vary by title.