During each spin, there are Mystery symbols present. Each mystery symbol has a counter, which is reduced by one each cascade. When the counter reaches zero, the reveal is activated, and all affected Mystery reveal symbols turn into the same symbol. The game has two modes: Lockdown Mode and Mixed Mode. In Lockdown mode, all mystery reveal symbols will have the same counter values. In Mixed Mode, there will be two independent counter values (which might be the same).

Super Free Spins are triggered once 2000 keys have been collected. During each spin of the Super Free Spins, there are Mystery Symbols present, which will always reveal without any cascades required. It's possible to trigger an additional spin when revealing the Golden Mystery symbol in the Super Free Spins. When the symbol is present on the reels, two cascades will be required to reveal the additional spins. The Super Free Spins is played at an average bet of which the keys were collected.

Key symbols appear randomly on top of normal symbols. Each key symbol awards 1-10 keys. After the keys have been collected, the normal symbol behaves as normal.

The Buy Feature allows direct triggering of the Super Free Spins round for the price displayed. In this game, it's possible to top up the amount of keys required as well as buying the full amount of 2000 keys. When the Buy Feature is purchased at full price (200 times the bet size that the feature will be played at), the current key collection is unaffected. In the top-up option, it's possible to buy any keys you still need to collect to meet the trigger point of 2000 keys. The price of this will vary depending on how many keys have already been collected. The bet size at which the feature will be played is the weighted average of bet sizes for when keys were collected or purchased.