Oxygen 2
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game review avatarReel McCoy

Oxygen 2 Slot Review

Did you know the US Navy has height restrictions for their submarines? To be assigned to one, you have to be shorter than 6'1". What a shame I’m 6'6" and have to miss out on the incredible experience of living in a metal sardine can. 🤷

I mean, it sounds like a hoot. It’s like playing a real-life game of "how many times can I bang my head on the ceiling before I lose my patience and go full Hulk mode." Every step would be like trying to do yoga in a phone booth. 🧘‍♂️

Sleeping arrangements? Forget about stretching out. Your legs will have to make peace with curling up into positions you didn’t think were physically possible. For someone my size, it’s literally like trying to sleep inside a hamster cage. 🐹

Remember the Titan submersible that imploded while searching for the Titanic? I feel like I’d be capable of causing the same level of destruction—just from the sheer frustration of not being able to stretch out and completely losing my patience. 🤬

I didn’t expect to be triggered by the backdrop scenery in Oxygen 2 slot by ELK Studios. However, knowing I can stretch out whenever I feel like it while raking in the dough in this game definitely helps me calm down. 🙏

Gameplay

Set inside a sunken submarine on the ocean floor, steel pipe constructions surround the 6x7 grid. In the background, you'll find large rocks. On the left is the game logo, with the X-iter button below it. I’ll explain its function in the Feature section shortly.

The reels are filled with colorful, funny-looking symbols, including an octopus, a snail, a crab, and a bomb, among others. You’ll also discover that this game uses the CascadeOtherwise known as a Tumble, Avalanche, or whatever a studio sees fit to name it. The idea is the same, though; winning symbols get removed, and new ones take their place. This action could result in additional wins, in which case the action continues. mechanic.

The game is built around the following stats: a 94% RTPRTP stands for “Return to Player.” The RTP describes the total bet amount that a game returns to players over millions of spins, and that figure is represented by a percentage. Table games, such as Roulette, typically have higher RTPs than many slots.

RTP needs to be considered in conjunction with a game’s volatility rate., a 25,000x max multiplier, a $150,000 max win, and a medium/high volatility rate. There are no paylines, instead you will win by creating clusters of a minimum of 5 identical symbols.

Features

BONUS GAME

Landing 3 Bonus symbols will trigger the Bonus game, awarding 10 Free Drops. During the Bonus game, all multipliers are persistent between Free Drops.

SUPER BONUS GAME

It takes 4 Bonus symbols to trigger the Super Bonus game. In the Super Bonus game, the Jellyfish feature is triggered on every Free Drop. Both the Bonus and Super Bonus games can be retriggered.

  • 4 Bonus symbols - Upgraded to Super Bonus game plus 7 extra Free Drops
  • 3 Bonus symbols - 5 additional Free Drops
  • 2 Bonus symbols - 3 extra Free Drops

JELLYFISH

Triggered at random, one or more Jellyfish swoop in carrying multipliers. Each Jellyfish will stop at a random number of positions. With every stop, it will add a multiplier. If there’s already a multiplier in that position, they will be combined before being added to the existing one.

MULTIPLIER STRIKE

This feature places a random amount of multipliers on the grid. The Multiplier Strike can trigger in any symbol drop of free drop.

OXYGEN BUBBLES

When a winning symbol explodes, an oxygen bubble is activated. Every time a symbol explodes on the bubble position, the multiplier is doubled. Oxygen bubbles are not affected by gravity.

When a winning symbol explodes, an oxygen bubble is activated. Every time a symbol explodes in the bubble's position, the multiplier is doubled. Oxygen bubbles are not affected by gravity and will stay in place.

OCTOPUS

An Octopus can randomly appear and position itself behind a symbol. If that symbol is part of a winning combination, the Octopus adds an additional random multiplier. The Octopus will move to a random position with each Free Drop during the Bonus game.

WILD SYMBOLS

Blaster Wild

The Blaster Wild is triggered when part of a winning cluster. It will then select a random symbol, and after the Blaster Wild explodes, it will replace all payout symbols with the selected symbol in an X- or Plus-shaped pattern.

Exploding Wild

The Exploding Wild removes all payout symbols within two cone-shaped areas: up and down or left and right. An explosion is triggered when no more winning combinations remain.

Super Exploding Wild

This guy will activate all unactivated oxygen bubbles behind the removed symbols.

BIG SYMBOLS

In any symbol drop, you may see a 2x2, 3x3, or 4x4 symbol. All big symbols can also have their own multiplier.

BUY BONUS

Under the name ‘X-iter’, the Buy Bonus feature will allow you to buy different game modes:

  • Super Bonus - Guarantees entry to the Super Bonus game with a minimum of one Jellyfish feature and one Octopus feature in each Free Drop. The price is 500x.

  • Bonus - Guarantees entry to the Bonus game with an Octopus feature in each Free Drop at the cost of 100x.

  • Octo Strike - Get one Free Drop that guarantees an Octopus feature and at least one Multiplier Strike feature. The cost is 25x.

  • Special Wilds - One Free Drop that guarantees a minimum of 3 Special Wilds for the price of 10x.

  • Bonus Hunt - One game round with triple the chance to trigger the Bonus game at the cost of 3x.

Performance

There were no issues with the game and everything worked flawlessly.

Max Win

You can bet as low as $0.20. However, if you want to land the $150,000 top prize, you’ll have to drop a $6 bet and connect it to the 25,000x max multiplier.

Conclusion

There’s a lot going on in this game, and I love it. Multipliers, Exploding Wilds, and Oxygen Bubbles? Come on! All the modifiers in play make every single spin exciting because you never know what’s coming next.

I believe the key to success is growing the multipliers, and there are plenty of ways to do it. The Buy Bonus feature is fantastic in this game, offering multiple opportunities at a great price. And don’t forget—the max win is within reach with a $6 bet.

This is, of course, the sequel to ELK’s original Oxygen slot. Once you’re done here, I suggest taking a look at the predecessor—it has similar features and potential payouts.

Slot Details

Game Provider: ELK Studios
Game Type: Video Slots
PaylinesPaylines are preset lines that run across the reels, and when you land matching symbols on them, that will result in a payout. The more paylines, the more ways you can win, but also the higher your bet per spin.: Cluster PaysUnlike traditional paylines, Cluster Pays can award wins when a minimum number of matching symbols land adjacent to each other (vertically or horizontally), forming a cluster.
RTPRTP stands for “Return to Player.” The RTP describes the total bet amount that a game returns to players over millions of spins, and that figure is represented by a percentage. Table games, such as Roulette, typically have higher RTPs than many slots.

RTP needs to be considered in conjunction with a game’s volatility rate.: 94%
Volatility RateSlot games can have low, medium, high, or extremely high volatility rates (or a combination thereof).

The less volatile the game, the more often it should pay out, but the lower the amount, the less the payout, as this is in keeping with the risk you’re taking. Volatility rate should be considered in conjunction with a game’s RTP.: Medium/High
Bonus Round: Yes
Progressive: No
Free Rounds: Free Drops
Max Multiplier: 25,000x
Max Win: $150,000
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