Betty Boop's Firehouse is a slot game by Bally Technologies wide-area progressive penny video slot on Bally’s Cash Connection link, with a top jackpot resetting at $400,000. The base game is a five-reel, 300-line video slot, including Mystery Stacked Reels—mystery symbols across the reel set are replaced with the same symbols to form clusters of like symbols—and “Betty’s 5-Alarm Scatter,” in which the mystery stacked symbol also pays as a scatter on randomly chosen spins. In Pudgy’s Wild Rescue Free Games, players use the touch-screen to pick a cat for Pudgy to rescue. They are awarded eight to 20 free games—in sets of four, with the player picking a cat before each set of free spins to reveal one of four free-game “enhancers,” which include Wild Reels, Symbol Wild, Extra Wilds, or a Wild Reel Multiplier. The feature occurs every 152 spins on average, with an average bonus of 34 times the total bet, according to the manufacturer.The main bonus event is “Betty’s Blazing Tower.” Landing Heart Bonus Symbols on reels 2 and 3, and a Betty’s Blazing Tower Bonus symbol on reel 4, triggers five free spins. Each spin is a three-reel mini- game with outcomes of mixed or matched 7s. Three matching 7s unlock the corresponding ladder level and award two additional spins. The player continues up the ladder, from 900 credits to 60,000 credits, times the line bet. This feature occurs every 80 spins on average, with an average payoff of 15 times the total bet. The top progressive jackpot is triggered by five scattered Betty Jackpot symbols with maximum credits bet.