WILD symbols substitute for all symbols (except SCATTER) and can appear on all reels. WILDS can appear as a single WILD or an expanded WILD covering 4 symbols high. FREYA symbols are only available in base game and replaced by THOR symbols in FREE SPINS. HERE COMES FREYA: On any spin, an expanded FREYA WILD with x2 MULTIPLIER can appear on a random reel, awarding a guaranteed win.