Monster Pop

You don't play with paylines, but with 'clusters'. Just like on slots like White Buffalo Cluster Wins and Aloha! Cluster Pays. Symbols that adjoin each other horizontally or vertically (and therefore not diagonally) can form a cluster together. The minimum size of a cluster is four symbols. You can bet from € 0.25 and up to and including € 25.00 per spin.
There are eight Reactoonz-like creatures that yield a cash prize when you spin clusters of four or larger. Payouts start from 0.32 times your stake, for a cluster of four times the three-eyed monster. The maximum payout in the base game is 40 times your stake. To do this, you have to spin a cluster of 25 rainbow-colored creatures.
The Oracle Eye counts as Wild. Every spin that you win nothing at all, the 'Monster Fury' feature can appear. During the 'Monster Fury' feature, symbols are swapped or the Monster Cloner appears. The Monster Cloner clones an entire horizontal or vertical row and pastes it on (or next to) the 5 by 5 'grid'. Say Twin Spin, but with an extra row or reel.
You can run larger clusters this way. And therefore also score more than 40 times your bet. After a spin, the grid resets to the 5 by 5 setup you started with.

This reset is not done during the free spins bonus. The Flaming Sphere symbols are the symbols with which you trigger the bonus. The number of spins depends on the number of Flaming Sphere symbols. You get 7 spins plus one spin for each Flaming Sphere symbol. And like most online slots, you need a minimum of three bonus symbols to get the bonus party started. Three bonus symbols therefore give you 10 spins. Seven plus three makes 10. And 10 bonus symbols means you play 17 bonus spins. 10 plus 7 equals 17.
The difference with the base game is that after a Monster Clone there is no reset. So your game screen is getting bigger and bigger. And a bigger game screen also means bigger clusters. Bigger clusters mean bigger wins, of course.
A cluster of 101 symbols or more gives you 400 times your stake if this cluster consists of rainbow creatures and possibly Wild symbols.
And that's not much for such an impressive cluster. We do not miss the bonus buy feature on this Monster Pop slot machine.