Mystery Mice

Mystery Mice is a cluster-pays slot from Pragmatic Play on a square grid. Groups of matching symbols that touch pay anywhere, then disappear in a Tumble so that new symbols can fall in and continue the chain, with a detective-mouse theme setting the tone.

Power Wilds are the key feature. They have a level and stay sticky on the grid through tumble chains, but lose a level with each tumble cycle they take part in. Power Wild Level-Up symbols raise a wild's level and extend its life. Spyglass scatters start the Free Spins, where Power Wilds keep their persistence until their level runs out or the bonus ends, and extra scatters mid-round add a spin. A bonus-buy option may be offered by some operators.

It may suit cluster fans who like a sticky wild with a durability system rather than a flat, permanent one. Watching levels rise and fall adds a layer of tracking. The free demo uses play credits, so no money is staked, and results are random. The published RTP is 96.49%.