Octo Attack: Slot Overview
Octopuses, known for their intelligence, are capable of untying knots and solving puzzles, sometimes even escaping from aquariums. Remarkably, most of their neurons are in their arms rather than at the brain, making them fascinating creatures with their eight limbs. Imagine a universe where octopuses dominate their ecosystem, potentially becoming the leading species on their planet. In such a world, octopus scientists might ponder the intellectual displays of two-legged primates in controlled environments. And perhaps one day, octopus spacecraft might journey to Earth, their intentions unknown to us until that moment arrives.
Enter Octo Attack, an online slot game starring Otto the Octopus, a character with eight arms, brought to life by Hacksaw Gaming. Set in a mostly monochromatic realm peppered with occasional bursts of color, Otto is easily recognizable. This angry-looking blue octopus stands out by the game's 6-reel, 5-row grid filled with various random objects. Octo Attack is a quirky game, yet in a way that Hacksaw Gaming excels at, blending punk rock vibes with a patchwork of creative elements to deliver something exceptionally cool. Hacksaw Gaming Achieving a win involves landing five or more matching symbols that are connected either vertically or horizontally.

Hacksaw Gaming has assessed Octo Attack as a medium volatile slot, rated 3 out of 5, with a cluster Return to Player (RTP) rate calculated at 96.27%. This value applies when wagering between 10 cents and $/€100 per spin, though variations might occur when engaging with other options. RTP In Octo Attack, symbols such as a black and grey hook, bolt, speech bubble, box, and heart represent lower value wins, whereas the colorful fish, beverages, mushrooms, ice creams, and sharks symbolize higher payouts. Clusters of five similar symbols can reward between 0.1 to 1 times the bet, with clusters of 26 or more fetching between 100 to 500 times the bet. Wild symbols, capable of substituting regular ones, may also appear with multipliers ranging from x1 to x10. bonus buy .
What might typically be an inconvenience, Ink Stains are actually advantageous in Octo Attack. When a winning is complete, the winning symbols are removed, and new symbols take their place. The winning positions then become marked with Ink Stains. These are cleared from the reels by the Tenta-Grab mechanic after their role is fulfilled, and removed in between base game spins.
Octo Attack: Slot Features

The Eye of Otto and Tenta-Grab Mechanic
When an Eye of Otto symbol lands and there are Ink Stains on the reels, the Tenta-Grab mechanic is triggered. It selects one random symbol on the grid and replaces all Ink Stained positions and itself with this chosen symbol. The Tenta-Grab can pick low value symbols, premium symbols, free spin symbols, wilds, or wild multipliers. If wild or multiplier symbols are selected, existing Ink Stained positions convert to a similar wildcard but with varying values.
Activating this feature requires landing at least three regular free spin symbols in the base game. The number of free spins awarded correlates with the number of free spin symbols triggering the round. During this feature, Ink Stains remain on the reels between spins until used in a Tenta-Grab event. For each set of three regular free spin symbols that appear concurrently, players receive an additional free spin.
Eighth Arm Is The Charm
Achieving three epic free spin symbols simultaneously in the base game launches this feature. Like before, the free spins awarded match the count of epic free spin symbols. However, during this mode, the Tenta-Grab only targets wilds or wild multiplier symbols. Securing three epic free spin symbols grants an additional spin.
Give Me Eight!
Octo Attack offers players the option to use the bonus buy section, which includes:
Bonus Buy
BonusHunt FeatureSpins - each spin increases the probability of featuring a bonus, costing three times the bet.
- Tentacular FeatureSpins - guarantees at least one win and an Eye of Otto symbol each spin, at a cost of 50 times the bet.
- Give Me Eight – Available for 300 times the bet. Here, the Tenta-Grab's reach is limited to wilds, wild multipliers, or free spin symbols.
- Eighth Arm Is The Charm - 100x the bet.
- Hacksaw Gaming has earned a reputation for creating slots where a random assortment of items coalesce into an engaging experience, though not all their slots follow this formula. Many offer themes like horror, and then there are the intriguingly strange slots, which blend a mix of objects, characters, and concepts into a singular game.

Octo Attack: Slot Verdict
Octo Attack exemplifies one of Hacksaw Gaming's less colorful but intriguingly playable slots. Wanted Dead or a Wild is an obvious Western, Stormforged does the Norse thing, Rotten Otto plays a major role in highlighting Octo Attack's best features. He's vital not just for letting Ink Stains highlight the grid, but for initiating the Eye of Otto symbol feature magic. Technically, the magic can occur at any stage since the slot offers a maximum win potential of 10,000 times the bet, regardless of the mode. However, the excitement is often found in the free spins section, particularly the super free spins mode known as Give Me Eight. In Give Me Eight, Ink Stains persist until utilized in Tenta-Grab, while regular symbols aren't picked. Imagine converting a large swath of reels into wilds in a cluster-pay game, further enhanced by potential wild multipliers. Chaos Crew 2 , RIP City , Beam Boys Octo Attack can be highly entertaining during especially dynamic moments. Like discovering a unique outfit at a thrift store you cannot wait to showcase, Octo Attack's unusual mix of thematic content, character, and subtle narrative work exceedingly well, supported by a robust set of features.
Combining a standout theme with ingenious features, Octo Attack represents another successful creation from Hacksaw Gaming.
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In Short
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