We love it when studios go wild with slot ideas. Don’t get us wrong – classic slots are great, and so are the Megaways slots or the Cluster Pays titles. However, free online slots are a perfect canvas for experimentation and innovation, as they can be built around any theme. Monsters, for example, work even better in slots than they do on the big screen. If you’re into kaiju and you love movie monsters, you’ll love what Crazy Tooth Studio has come up with. Its slot for Microgaming is titled Rhino Rilla Rex, with the three big fellas causing all kinds of mayhem on the reels.

This beast of a slot is monstrous any way you look at it. From the rhino, gorilla, and T-Rex wreaking havoc to the specs, it’s gigantic from all angles. It has 3,125 paylines that deliver wins both ways, which is impressive for a highly volatile slot with an RTP of 96.19%. In visual and gameplay terms, it looks like something a mad scientist cooked up in his lab. It’s set on a tropical island but has a dark and ominous tone, probably because the beasts are looking to scratch the reels open.

The Rhino Rilla Rex rampage is available for free and real money in all Microgaming slot casinos. If you’re impressed by gigantic monsters and bombastic gameplay, it’s the slot you’ve been looking for.

Rhino Rilla Rex is not your typical slot. It has a 5x5 setup with the reels set against a lush jungle on a tropical island. The atmosphere is pretty dark as befits a slot inspired by monsters. You’ll find skulls of the three main monsters to the left and a fourth one which is an abomination made of them.

While it looks unusual, the controls are all familiar and easy to use. The premium beasts are worth 0.08x for five on a line, while the low-win symbols that look like a beast’s footprints pay half of that. If that sounds like too low of a payout, you’re not wrong. However, it’s been done intentionally since the four pots on the left side can boost the payouts in an instance. We’ll talk more about that later.

It doesn’t matter whether you play the Rhino Rilla Rex slot on your PC, Mac, or mobile phone. Thanks to the fact that it was developed on the HTML5 platform, you can spin the mobile slot on the go on any Android and iOS device. Check out our recommended best mobile slots here!

Choose a bet from $0.25 to $25 and hit the Spin button to start this crazy adventure. The first thing you’ll notice is that the premium beasts are stacked in 1x2, 1x3, and 1x4 sizes. They can land anywhere, while Wilds land on the first and last reel only.

The slot doesn’t wait for long to introduce the slot feature. Three or more premiums will trigger the Team Up feature, combining the triggering beasts into a completely new and bizarre creature. The game then shifts to a new grid with multipliers, tokens, and cash prizes appearing. The creatures in action are combined into a beast-like Rhinorilla. Each new non-blank resets the count to 1 spin, offering action similar to Hold & Win respins rounds.

Remember those meters on the left? They’re important during the Beast Prizes feature. Whenever a premium beast lands on the reels, it raises the respective beast prize. Tokens that land during the Team Up feature fill the respective slots by color. Whenever you fill a meter, it is directly rewarded as a cash prize. The maximum is 500x for Rhino Rilla Rex.

The Bonus Round is triggered by a combination of three beasts, but this time, one of them has to have a golden frame around it. Once the action starts rolling, players will enjoy Team Up spins which play just like the base game, but now with extra free spins as an additional reward.

The Rhino Rilla Rex slot RTP is 96.19%, perfect for a highly volatile slot game. With a bit of luck and the highest multipliers, the maximum you can win is 8,600x the stake.

Rhino Rilla Rex is every cloning scientist’s worst nightmare. It combines three deadly beasts into an unstoppable juggernaut, which, luckily, is here to grant you multipliers and wins – not destroy your home city.

It’s a fun slot with unique features that will certainly keep you entertained, so it’s worth giving it a try for free or real money at the best online slot sites.