ULTRA STACK LION™ is a 5 reel video slot game themed with the wild animals from the forest and played at 50 lines. BIG CAT FEATURE triggers when 3 scattered SUN symbols appear on reels 2, 3 and 4. The feature consists of MINI GAMES and 8 FREE GAMES. During the MINI GAME, the player chooses 1 of 5 silhouettes to reveal the number of animal symbols during free games and during the FREE GAMES, additional 8 free games are added when 3 scattered SUN symbols appear on reels 2, 3 and 4.