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Doctor Electo introduces a unique layer of player engagement with column expansion collection meters and the all-new Hyperspins feature. Upping the bar again with art, animation, and audio, Dr. Electro is a 5-column, 4-row base game with expanding reels, increasing to 7 rows and a huge 16807 ways pays. Collect column expansion symbols in the base game, trigger the all-new Hyperspins feature to unlock the reels, then continue collection to further expand the reels and up the win potential. Enter free spins with Bonus scatter symbols or even immediately with a HyperBonus special bet. Expansion symbol collection in free spins extends reels directly and awards free spin retriggers. Progressive Platinum and Gold Bonus jackpots are back by popular demand and with expanded reels, the opportunity to win big just increases. Packed with engagement, monetization, and retention - the classic Kalamba Games calling card!