At first glance, you might be baffled at the appearance of this I.R.I.S. 3000 slot variation. If you take a second to look a little longer, you'll find out what an ingenious theme this particular 5 reel game is.

I say 5 reel, but it's like 5+2 reel. What do I mean? Well, this game in actual fact has 7 reels, but only 5 are used at the beginning of a spin, and with the added feature of selectors which can activate the other 2 reels.

In fact, you'll need to hit those selectors, as the jackpot can only be won by first activating all 7 reels, which starts the multipliers, and then you'll also need to hit the 5 Hazard symbols on the payline, WITH a 10x multiplier, in order to get the progressive jackpot.

Sounds tough right, but the added benefit of the other reels is clearly evident for the lower hits. You stand a much high chance of hitting those middle range jackpots with the features which this slot game has.