I.R.I.S. (Interactive Real Intelligence Slot) 300 is a 5-reel, system-wide RTG Progressive slot game and the pay table is displayed on the machine. The progressive jackpot total is displayed just above the reels, and restarts at $100,000 every time the progressive jackpot is won. This machine may only be played in the single denomination of 50 cents.

In order to play I.R.I.S. 300, you must close two (2) doors after inserting coins into the machine. You can open/close the doors by pushing the number buttons which are directly below the doors. You may also click the Auto Pick button where two (2) doors will be randomly closed for you. You must have five (5) doors open in order to play (two (2) doors must be closed). In order to increase your chances of winning, I.R.I.S. 300 is equipped with laser beams that open closed doors if the laser beam lands on a closed door. A laser beam is activated when a player plays two coins. Two laser beams are activated when a player plays 3 coins (Bet Max). Press Bet Max for a chance to open all seven doors increasing your chances to win. The doors open if one of the red lasers stops above a closed door. When all seven (7) doors open, a multiplier wheel also spins, giving you a chance to win 10x your initial win amount. Once all seven doors are opened, receive the 10X multiplier and hit the 5 Radiation Hazards – You win the progressive jackpot!!