The slot has numerous wild symbols and two of them can appear in the base game, Superman and General Zod. They will substitute for all of the other symbols, except for the scatters, to help and form winning combinations.
The scatter symbols are Krypton and the World Engine.
When Superman or General Zod land on the reels the shifting wilds feature begins. Superman will move to the right on each spin and General Zod will move left until they drop of their respective ends of the reels. There is no limit to how many wilds can be on the reels at the same time and this can lead to some huge payouts.
If the two wilds land on the same row then the Battle For Earth Free Games begin. Superman takes to the skies to battle General Zod and his warriors. The game is played with four shifting wild symbols, Superman, General Zod, and two of General Zod’s warriors. When the Superman wild lands on the same row as any of the other three the pair will fight and each clash adds more wilds to the reels. The free spins continue until Superman is defeated.
If you land the Krypton Bonus symbol on the fifth reel then the Krypton Free Games begin. You win 7 free spins on a special set of reels that have 50 paylines and feature special symbols that are even more valuable. Better still, before the spins begin, up to 10 Jor-El wilds can be added to the reels and they remain locked in place for the feature. If more Jor-El wilds land during the spins then they too will lock on the reels.
The World Engine Bonus is triggered by landing the bonus symbol on the fifth reel. It will cause up to seven regular wild symbols to be randomly placed on the reels for a free re-spin.
The slot is part of the DC Superhorse Progressive Jackpot network and the jackpot game can begin at any time. Best of all, once it starts you are sure to win one of the four jackpots on offer. In the game is a grid of twenty jackpot icons and you need to select them one at a time to reveal what colour they are. Each colour represents one of the four jackpots and when uncovered it will fill up a segment in the corresponding jackpot’s meter. You win the first jackpot whose meter you fill. The Mini jackpot is won by finding 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, the wild symbols offer the top payout of 1,000x, as does the Superman logo. Martha Kane can payout up to 250x, Jonathan Kent can payout 200x, and Perry White can payout 150x. The jets and buses can payout up to 50x, the newspaper and camera up to 35x, and the glasses and post box up to 25x.