Nitropolis 5

Get ready, players—Nitropolis 5 has finally landed. Traveling through the chaotic streets of the Nitropolis universe with the likes of fan-favorites such as Gritty Kitty, Rogue Rats, Dirty Dawgs, and Pug Thugs, the climax is finally here. Towering above the futuristic cityscape, this final installment of ELK Studios' Nitropolis saga reaches an epic showdown. This time, the clans have perfected their craft and are ready to take part in the ultimate battle-one that is sure to be full of explosive action, huge features, and utter excitement.

Nitropolis 5 Base Game

There are a couple of key decisions to be made before getting into the Nitropolis 5 action. First, it's a case of deciding how much to bet, with options ranging from 20 c up to $50 per spin. Next up is whether to turn on the X-iter feature - a facility that unlocks various bonus modes for an additional fee. Whichever option you decide to go with, this game plays at 94% RTP and with high volatility.

This is no conventional game grid from the very start: it starts with 6 reels, showing 4 symbols each, for 4,096 ways to win. The reels can expand as high as 8 rows, and Nitro Reels may hold as many as 12 symbols each for a significantly greater potential number of ways to win, actually reaching into the millions. Wins usually occur when matching symbols appear from the leftmost reel, but sometimes wins pay both ways.

Symbols come in three tiers: low, mid, and high. The low-paying symbols are J-A royals, mid-tier symbols are the four different clan logos, while high paying symbols come in the shape of the four animal characters. Landing a 6-of-a-kind of the low-paying symbols pays 0.25x your bet, mid-tier symbols pay 0.3x while high paying symbols pay between 1x to 3x the bet. The wild symbol substitutes for all regular symbols except scatters and super scatters, and landing a wild payline pays the same as the highest value symbol.

Main Game Features in Nitropolis 5

Indeed, Nitropolis 5 really keeps the tradition of Nitropolis slots going. It comes with Nitro Reels, huge symbols, Nitro Multipliers, Avalanche wins, NPD Holding Cell mechanics, 11 different modifiers courtesy of the Nitro Booster, an amazing Boss Fight, normal and super free spins, along with a buy-in option with X-iter bonus purchases.

Nitro Reels: These special reels occupy two symbol spaces and can contain sets of 4, 6, 8, 10, or 12 matching 1x1 symbols. Big Nitro Reels For greater wins, these are six-space reels that hold matching 2x2 symbols.

Huge Symbols: Both wilds and normal symbols can appear in 2x2 and 3x3 sizes and count as the corresponding number of regular-sized symbols they overlap. Any gaps below giant symbols are filled in with matching 1x1 symbols.

Nitro Multiplier: This is a blocker symbol of the Nitro Reel, showing a value from x4 to x12 of a multiplier. Being part of a winning combination, the multiplier boosts the win and respins during the cascade to give additional chances. Several multipliers accumulate for even bigger wins.

Cascades - Avalanche: After every win, the participating symbols in that win disappear and give room for new falling ones from above. Extra rows of symbols can be added; a maximum of 8 rows in total. Nitro Reels and Nitro Multipliers will join this dynamic mechanic. The cascades continue until no more wins are generated.

NPD Holding Cell Feature: This may hit in at random during any spin, respin, or free spin and selects a random symbol type. If those symbols form part of a win, they lock onto the grid along with any Scatter or Nitro Multiplier symbols. Each respin expands the grid with more respins continuing to occur until no new matching symbols appear or this feature hits again, at which point locked symbols are paid.

Nitro Booster:

Power-Up Mechanics

Above the main reels sits the Nitro Booster bar, featuring 3 flippers that trigger various modifiers at different stages—before the reels spin, after they stop, or following a win. The Nitro Booster has 11 different features, with 6 targeting the main reels and 5 focused on the Nitro Reels:

Dirty Dawgs: Upgrades several high-paying symbols to the highest value symbol.

Pug Thugs: Shifts a Nitro Reel to help complete or extend a winning combination.

Gritty Kitty: Randomly selects a symbol for a scatter win assessment.

Rogue Rats: Adds a random number of Nitro Reels to the main grid.

Max Rows: Expands the reel grid to a maximum height of 8 rows.

Respin: Grants a respin at the end of the round, with Nitro Reels, multipliers, scatters, and wilds locked in place.

Both Ways: Pays wins both from the leftmost and rightmost reels.

Nitro Wild: Turns all symbols in the Nitro Reels below into wilds.

Nitro Match: Matches the Nitro Reels with the symbols either on the same or adjacent reels to try to form a winning combo.

Nitro Upgrade: Boosts the symbol count on all Nitro Reels below the modifier.

Boss Battle

To trigger the Boss Battle, players need to land 3 Boss Battle coins in the Nitro Booster section. Once activated, the main reels and the Nitro Booster are replaced by a new 7x8 grid. Each position on this grid is either blank or contains a coin with a prize, or the highly sought-after Max Win symbol. Players begin with 3 shots, and hitting a coin awards the prize, clears the space, and resets the shot count to 3. The feature continues until no shots remain or the Max Win symbol is hit, which offers a massive payout of 50,000x your bet, concluding the feature.

Free Spins

In the base game, landing 3, 4, 5, or 6 scatter symbols grants 8, 12, 16, or 20 free spins. During the free twirls round, any Nitro Reels that land remain active for the entirety of the feature. The round begins with a safety level of 4 rows, and each winning spin raises this level by adding rows, up to a maximum of 8. The next spin starts from the newly set safety level. If one of the triggering scatters is a Super Scatter, it activates the super bonus version of the game. Super scatters only appear in Nitro Reels and always count as a single symbol. The super bonus round is played with both the Max Rows and Both Ways mechanics enabled, and the NPD Holding Cell activates on every free spin. Landing 3, 4, 5, or 6 scatters during this round awards an additional +8, +12, +16, or +20 free twirls.

X-iter Feature

The X-iter feature lets players instantly access special game modes by purchasing various bonuses, some exclusive to this feature:

Bonus Hunt: For 3x your bet, get a spin with 4 times the chances of triggering the bonus game.

Gang Warfare: Spend 10x the bet for one spin, where the Nitro Booster is filled with additional features, increasing the potential for bigger wins.

NPD 4EVA: For 25x the bet, trigger the NPD Holding Cell feature in a guaranteed game round.

Bonus: Pay 100x your bet to directly activate the free spins bonus round.

Super Bonus: For 500x the bet, start the super bonus round with Max Rows, Both Ways mechanics, and other enhanced features, ensuring a high-potential game mode.