Rumble Roo K.O.

Rumble Roo K.O.! is a Bet 40, 40 line slot game. It has 5 reels, 4 rows, and the following features:

  • Respins
  • Mystery Spin 

The expected payback reflects the theoretical return across a very large number of spins by numerous players over an extended period of time and cannot be affected by the player's strategy.

Any combination of wins in a single game is limited and will not exceed 0.

It may not be possible to reach this limit in a single game from every bet configuration.

Game Rules

Wild

  • Wild substitutes for all symbols except {Scatter Bell}.
  • Appears on all reels during Base Game.
  • Appears in Base Games only.

Scatter Bell

  • 6, 7, 8, 9, 10, 11, 12, 13, 14, or 15 Scatter Bell trigger Respins.
  • In Respins, each Scatter Bell increments all {Respin Roo} once.

Mystery Symbol

  • May appear on any spin to reveal {Wild}, {KOALA}, {COCKATOO}, {PLATYPUS}, {GYM BAG}, {BOXING GLOVES}, {Scatter Bell}.
  • Appears in Base Game only.

Respins Roo

  • Initial prizes of 10, 15, 20, 25, 30, 40, 50, 60, 80, 100, 120, 200, 400 credits are available at min bet.
  • Prizes can then be incremented upon landing {Scatter Bell} or {Respins K.O.!}.
  • Appears in Respins only.

Respins K.O.!

  • Respins K.O.! will increment all {Respin Roo} 2, 3, 4, 5, 6, 7, 8, 9, or 10 times.
  • Appears in Respins only.

Respins

  • 6, 7, 8, 9, 10, 11, 12, 13, 14, or 15 {Scatter Bell} trigger Respins.
  • 3 Respins are initially awarded.
  • Upon entering Respins, each triggering {Scatter Bell} transforms into a {Respin Roo} with an initial prize.
  • Initial prizes of 10, 15, 20, 25, 30, 40, 50, 60, 80, 100, 120, 200, 400 credits are available at min bet.
  • Any {Scatter Bell} will increment the amount on each {Respin Roo} by the initial prize displayed.
  • {Respins K.O.!} will increment the amount on each {Respin Roo} by the initial prize displayed 2, 3, 4, 5, 6, 7, 8, 9, or 10 times.
  • After incrementing other prizes, {Scatter Bell} and {Respins K.O.!} will transform into {Respin Roo} and be allocated an initial prize.
  • {Scatter Bell} and {Respins K.O.!} will not increment a {Respin Roo} which first appears on the same spin.
  • Any {Scatter Bell} or {Respins K.O.!} will reset Respins to 3.
  • Respins end when no respins remain or all reel positions have been filled.
  • Respins are played at the triggering bet.

Mystery Spins

  • On any Base Game Spin, Roo and Boxing Bag may appear during reel spin.
  • If Roo breaks Boxing Bag, 6 - 10 {Mystery Symbols} will appear randomly on reels to award the Mystery Spin.
  • Once reel spin is complete, all {Mystery Symbol} will disappear, revealing identical symbols.
  • {Mystery Symbol} may reveal {Wild}, {KOALA}, {COCKATOO}, {PLATYPUS}, {GYM BAG}, {BOXING GLOVES}, {Scatter Bell}.

Rules (For Line Games)

  • Play bet 40 for 40 lines.
  • All wins begin with the leftmost reel and pay left to right on consecutive reels, except SCATTER which pays any.
  • All wins are multiplied by the bet multiplier.
  • All wins on selected paylines only except SCATTER.
  • Wins on different paylines are added.
  • Coinciding wins are added.
  • Highest win only on each selected payline.
  • Payouts are made according to the paytable.
  • Malfunction voids all pays and plays.
  • RTP: 94.08%

How to Play

  • Step 1: Choose your BET
  • Step 2: SPIN

Paytable amounts are fixed and prizes are multiplied by the Bet Multiplier.

The game displays all your details in the following display fields.

  • Balance: Displays your total balance.
  • Win: Displays the amount won in the spin.
  • Total Bet: Displays the total wager staked.
  • Total Win: Displays the accumulated wins during Respins.
  • Respin: Displays the number of respins played, together with the total number of respins awarded.
MAIN GAME BUTTONS:

1

ADJUST BET              Total Bet menu to adjust bet.

2

SPIN                            Spins the reels.
                                    The SPACE BAR can also be used to spin when playing on Desktop.     

3

AUTOPLAY                 View and set AUTOPLAY options.

4

STOP AUTOPLAY       Displays the remaining amount of AUTOPLAY spins, click this button to STOP AUTOPLAY and return to normal play mode.

2

STOP/SKIP                 During Base Game button will STOP the reel spin. During Free Games button will STOP the reel spin or SKIP to the next spin.

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MENU                         View the MENU, giving access to PAYTABLE, BET, AUTOPLAY, SETTINGS, HOME and CASHOUT tabs.

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MUTE                         Mutes sound and ambient volumes.

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UNMUTE                    Unmutes sound and ambient volumes.

MENU TAB BUTTONS:

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PAY TABLE                View game rules and pay awards for winning symbol combinations.

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AUTOPLAY                View available AUTOPLAY
                                    AUTOPLAY options allows automatic consecutive normal game plays.

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TOTAL BET               View available bet options.
                                   TOTAL BET equals the Bet Multiplier x the coin value.

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SETTINGS                 View available sound settings.

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HOME                        Closes MENU and returns to the game.

Last modification date: 9/23/2025