The Batman logo is the wild symbol, it can land on reels two, three and four, and it will substitute for all of the other symbols, except for the scatter and bonus symbols, to help and form winning combinations.
There are two bonus scatter symbols, the Batman Logo and a version of the logo that has been taken over by the joker.
The slot features bidirectional paylines. This means that winning combinations can be formed from left to right starting from the leftmost reel or from right to left starting from the rightmost reel, effectively doubling the number of paylines.
If Batman lands fully stacked on the first reel, the Batman Respins are triggered. All the Batman and Batman logo scatter symbols are locked on the reels and a coin is tossed. If it lands on the Batman side then the reels spin again and the feature is repeated. The feature continues until the coin lands on the Joker side or until you have triggered the feature eight times.
If the Joker lands fully stacked on the sixth reel then the Joker Respins begins. The feature works in the same way as the Batman Respins but with the Joker symbols locked on the reels and the Joker side of the coin retriggering the feature. If both symbols land stacked at the same time then a coin is tossed to determine which set of respins is played.
If you land the Batman logo scatter symbol on reels two and three then The Dark Knight Free Games begin. You win seven free spins during which the Batman symbols become wild and lock in place for the remainder of the spins.
If you land the Joker Bonus symbol on reels four and five simultaneously then the Agent of Chaos Free Games begin. You win seven free spins during which extra large Joker symbols of random sizes can land on the reels to help you form higher value wins.
If you land the Batman scatter on reels two and three and the Joker scatter on reels four and five then the Gotham City Free Games begin. During these spins, the Batman symbols are wild and will lock in place for the duration of the spins and the Joker symbols can land in extra-large versions of random sizes. If the large Joker symbol overlaps a wild Batman symbol then the Joker will become wild and unlock the Batman. Furthermore, the two bonus symbols and the Joker symbol will payout like the high value Batman symbol.
The slot is also linked to four progressive jackpots. To play for the progressive jackpots just keep the reels spinning as the jackpot game can begin at any time and once it starts, you are guaranteed to win one of the jackpots. The game consists of a grid of twenty icons; you need to click on them to reveal one of four colours. Each colour corresponds to one of the jackpots up for grabs and you win a jackpot by filling up its meter. To win the Mini jackpot you need to find two green icons, the Minor jackpot is won with three blue icons, the Major jackpot is won with four yellow icons and the massive Grand jackpot is won by finding five red icons.
In addition to the progressive jackpots, Batman offers the top payout of 1,500x, the Joker can payout up to 700x, Bruce Wayne can payout up to 250x, Rachel Dawes can payout up to 200x, Two-Face can payout up to 100x, and Jim Gordon can payout up to 90x. A can payout up to 85x and K and Q can both payout up to 75x.