The Speedster feature is randomly awarded throughout the base game. This feature simply sees the Flash appear on the reels, where he’ll turn one or more symbols wild. Yes, it’s quite a straightforward feature, but that isn’t to say it won’t be money spinning!
To enter the free spins feature for this online slot, you’ll need to land the Flash ‘lightning’ symbol on reels 2, 3 and 4 during the same spin, as well as having the bonus bet activated (see below). This will see the Flash running out of the screen towards you (probably a good idea not to wear 3D glasses at this point, as he might literally run straight through you). The screen will now reveal the following three bonus feature options, each with 12 free spins:
Captain Cold – Any time the Flash appears; Captain Cold might freeze the reel into an expanding wild and you’ll enjoy a free re-spin.
Gorilla Grodd – Gorilla Grodd appears and will teleport a single wild into a random position on every free game.
Mirror Master – After any of the free games, the mirror master may alter time! He’ll turn the clock back and you can replay the last four spins.