Mamma Mia! 2 Slot by Betsoft

COLLECT only appears on the middle reel. BONUS only on reels 1 and 3. That restriction is the entire engine of how Mamma Mia! 2 plays - you need at least three BONUS coins plus a COLLECT to trigger the Hold & Win, and the positional lock means every spin is a specific alignment puzzle rather than a scatter-anywhere situation. When multiple COLLECTs land on reel 2 during the bonus, each one independently scoops up every BONUS value on the grid. Two COLLECTs effectively double your collection. Three would triple it. The math gets wild fast, and that's before the expanding grid kicks in.

EXPAND symbols show up only during Hold & Win, growing whichever reel they land on by one row and adding a respin. Each reel stretches up to five extra positions, so the base 3x3 can balloon into something much taller as the bonus plays out. More rows means more landing spots for BONUS coins, which means more value for those COLLECTs to grab. There's also a +1 SPIN symbol that extends the round without expanding anything, and a Pot of Gold random trigger that forces extra BONUS and COLLECT symbols onto the reels when the feature almost-but-didn't activate. For 9 respins at 30x, the buy option drops you straight into the Hold & Win without waiting for that reel 1-2-3 alignment.

Stacked mystery symbols fill entire reels with a single randomly chosen symbol each spin during base play - useful on a compact grid where one full-reel match across three positions is all you need. The paytable is modest (the top chef pays 6x for three), so the real payouts come from the Hold & Win jackpots: Mini at 25x, Minor at 50x, Major at 350x, Grand at 2,500x. Fifteen years separate this from the original Mamma Mia, and the two games share almost nothing beyond the rival-chefs premise and that warm, candlelit kitchen with its white subway tiles, stacked plates, and a cooking pot overflowing with gold coins perched above the reels.