Firestorm

This new slot series on Aruze’s oversized Muso-55 cabinet features unique free-game and hold-and-spin sequences. There are two inaugural base games, Firestorm Lion and Firestorm Bull.

The base game is a five-reel, 50-line video slot. During the primary game, a “WIN” symbol appearing on the reels changes to one of 15 different symbols. If several WIN symbols appear on one spin, they all change to the same symbol for potential big wins.

There are two main bonus events. A scatter symbol on three or more consecutive reels (beginning with the leftmost reel) triggers the free game feature. A number then appears on each of the triggering symbols; the numbers add up to the number of free spins awarded—numbers from one to 10, for a free-spin round from three to 50 spins.

Six or more gold or purple fireball symbols trigger the main Rising Fire bonus event. This is a hold-and-re-spin event that starts with three free games. The triggering symbols are held in place during the re-spins, and any additional fireballs lock in place and set the free spins back to three. The feature continues until no free spins remain or the entire four-by-five reel array is covered with gold fireball symbols. That triggers the top jackpot.

Each fireball returns a credit award or one of four jackpots, with static prizes of $10 (Mini) and $50 (minor), and progressives resetting at $1,000 (Major) and $5,000 (Grand). Alternate versions of the game feature higher Major and Grand jackpots, the top available prizes resetting at $10,000 and $100,000, respectively. The jackpots also can be won through line combinations.

The purple fireball symbols unlock additional rows in the reel array—up to a seven-row reel set. Numbers at the right of the screen indicate the thresholds of purple fireball symbols needed to unlock each row. Unlocking all rows awards a special “Up Up Jackpot” progressive, resetting at $500.