Coin Up: Hot Fire Slot Review

This trigger is specific to the middle row. It should not be replaced with a generic six-coin rule or a requirement for three identical ordinary symbols. The game is built around assembling the bonus-entry pattern.

The bonus starts with three respins. Landed symbols lock in place, and each new symbol refreshes the counter. The collection can therefore continue beyond three actual spins.

Mini, Minor and Major can arrive as Bonus-symbol prizes. Mystery and Mystery Jackpot offer additional reveals, while Collect gathers all current values. These special operations sit alongside the ordinary locked-coin collection rather than replacing its counter rule.

COIN UP appears on an extra row and affects the symbols on the reel directly below. It raises values and can transform Sticky Coins into Jackpot Mystery symbols.

That transformation matters because the affected symbol no longer represents just its original coin value. The next reveal can bring a jackpot outcome. The upper-row position also matters: the effect is associated with the column below it, not an assumed universal upgrade across the whole board.

MULTI UP adds a multiplier to the symbols below its extra-row position. The saved frames show different multiplier markings across the field, illustrating how the collection can develop unevenly by column.

Filling all nine positions qualifies for the stated 500× Grand. The booster row is separate from those nine positions. A round can also end with its counter at zero and unfilled spaces, as shown in the retained ending frame, so an ending collection is not automatically Grand.

Filling the special meter activates Ultra Bonus, which introduces higher-value Bonus symbols. The provider also offers purchases of the regular and Ultra games for 40× and 75× the bet respectively.

The additional Ultra cost buys the enhanced entry conditions, not a guaranteed payout. Compare the selected mode and actual bet before using a purchase. A higher-value starting symbol set still leaves the final collection, multiplier effects and full-board completion dependent on the round that follows.