If there’s one thing that the internet most definitely is not lacking it’s cute cats – Thunderkick thinks otherwise though and has tried to remedy that supposed dearth by creating a video slot called Not Enough Kittens. It’s a lovely looking but very strange 5 reel, 35 payline game that comes with double symbols and a bonus round that awards up to 50 free spins with stacked wilds. Play on your desktop, tablet or mobile devices from between 10p and £100 per spin.

A laboratory in the P.U.S.S science facility is the setting for Not Enough Kittens – overseeing proceedings is mad granny Professor Catarina Kettlingur. The reels are made up of 5 brightly coloured balls of wool and 4 different kittens. The kittens can all land as single or double symbols which means you can land combinations of up to 10 symbols. The top cat here is the black puss who pays 100 times your stake if you land 10 in combination.

That amount is also on offer courtesy of the wild – it replaces all other symbols apart from the free spins scatter. If you land a single cat in a payline with a wild, it becomes a double symbol.

Land 3 or more scatters on the same spin and you’ll trigger the Bonus Game feature. Helping you here is the double scatter which can hit on reel 5. The more scatters, the bigger the number of free spins – 3, 4, 5 or6 scatters will reward you with 10, 15, 20 or 25 free spins respectively.

Look out for the wilds that spin fully stacked during the free spins – land 3 or more scatters during the free spins and up to 25 additional free spins will be added to your tally.

As usual for a Thunderkick video slot, Not Enough Kittens looks and sounds terrific. The theme will likely be something of an acquired taste though. The double symbols help boost the action in the base game, especially the wilds. We found the free spins round quite hard to come by but the stacked wilds made it worth the wait.

Feline fanciers should find plenty to enjoy in Not Enough Kittens. The strange theme and small range of extras mean it only has limited appeal for the rest of us. Saying that, it’s highly volatile and can pay up to 3,650 times your bet on every spin/free spin. If you like cats, NetEnt’s Copy Cats and Play ‘N Go’s Big Win Cat are worth purring over.