Agent of Hearts Slot by Play'n GO

You can place a stake from €0.20 to €100 and start spinning! The cascading reel system removes all winning symbols from the playing field with an unusual 7-7-5-5-5-7-7 grid, and this allows new symbols to drop out to fill the empty spaces. You have Wild to help you make winning combinations. Cascading wins continue as long as you keep winning, and long-term wins can trigger modifiers. Sometimes for non-winning spins, you may be awarded the "Second Chance" feature. You will then receive up to 7 Wilds, and this can lead to a win that activates the cascading feature.

The 4 highest-paying symbols have a corresponding counter on the left side and thus all winning premium symbols are collected. You need 6 to fill the counter, and this gives the corresponding modifier after the cascade is complete. Cupcake Splat, Smokin 'Phat, Grinning Cat, and Mad Hat are pretty useful modifiers:

• Cupcake Splat - Sonya runs across the board leaving a trail of cupcakes that explode to remove the underlying symbols, or they turn into a random matching symbol

• Smokin' Phat - The Caterpillar emits 1 to 3 trails of smoke diagonally across the board and this removes or transforms affected characters

• Grinning Cat - the smile of the Cheshire cat overlaps the playing field, transforming or removing the symbols below it

• Mad Hat - Grants up to 9 Mad Hatter symbols. They remove adjacent symbols and convert them to randomly selected matching symbols

You need to collect 3 keys in 1 cascading sequence to open the big heart at the top of the reels. Then the Queen's Heart Bonus Round is activated, and you get 1 free spin, which unfortunately cannot be re-started. All 4 modifiers are played in turn as the cascading sequences are completed before the Random Hearts Wild is activated. This awards up to 7 Wilds before the Mega Wild Heart (3x3) appears.