Zap Attack! slot from Thunderkick is a title based on an alien invasion of a small town in the middle of nowhere called 'Roswealth'. The game is set up on a 5x5 grid and presents 25 paylines in total. This high volatility slot has a theoretical RTP of 96.17%.
The UFO Wild symbol resembling a UFO can appear in any spin and will replace all symbols except for Scatters. Additionally, expanding multiplier Wilds can appear and occupy an entire reel and introduce random multipliers of up to 5x for the respective payline.
In the bonus round of Zap Attack!, the alien character, wields a ray gun on a mid to low paying symbols. Each shot contributes to filling a progressive meter. When this meter reaches its capacity, the targeted lower paying symbol undergoes a transformation into the alien character for the remainder of the round. As a bonus, this transformation also grants an additional free game to the player.
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