In order to mint your Access Pass you must first connect your wallet to the ChainGunnnies website. From there you can either mint the Free version of the pass of the premium access for $5, either through OAS token or Credit Card payment.
Gives the owner access to ChainGunnies' FPS Survival Mode (Blue)
Gives owner access to ChainGunnies FPS Survival & Battle Royale Mode (Red)
You can purchase the token on a number of exchanges