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Online Casino Games - Rules Explained

Power Zones: Thunder Birds

Free GamesClusterMultipliers

Power Zones™: Thunder Birds

8-reel, cluster game with collapsing reels

To play the game:

  • The entry screen displays the game’s features.
  • On the entry screen, press the ► button to enter the main game.
  • Press - or + beside TOTAL BET to choose the total bet.
  • Press the SPIN button to spin the reels with the current bet.
  • In the case of a winning spin, the WIN field displays the accumulating winnings.
  • Wins are calculated according to the paytable.
  • 5 or more matching symbols vertically and\or horizontally adjacent anywhere form a win. Winning symbols are removed after they pay out causing symbols above them to drop and new symbols to fall from above.
  • Wins are multiplied by the coin bet. The coin bet is the total bet / 10.
  • The BONUS symbol is an exception to these rules.


  • To open the paytable, press the i button.
  • To navigate the paytable, scroll up or down, or swipe the screen.
  • To close the reference pages and return to the game, press the back-arrow button.

Maximum win limit:

  • The maximum win in the game has an upper limit. For more information, see the Terms and Conditions.

Bonus Symbol:

  • The egg symbol showing 'BONUS' is the BONUS symbol in the game.
  • The BONUS symbol appears on all reels during the main game and Free Games.
  • When 4 or more BONUS symbols land anywhere on the reels, the Free Games feature is triggered.

Multiplier Symbol:

  • The chicken symbol holding a sign is the MULTIPLIER symbol in the game.
  • The MULTIPLIER symbol can land anywhere on the reels to multiply the win by the value shown.
  • Multiplier values are additive.
  • The MULTIPLIER symbol appears only during Free Games.

Power Zones™ and Meter:

  • At the start of every spin, there are 16 Power Zones™ on the centre of the reels.
  • Each win fries a bird and adds 1 drumstick to the meter beside the reels.
  • The drumsticks in the meter are cleared on every new spin.
  • Every 4 drumsticks increase the number on the meter by 1.
  • If a number is on the meter when the reels stop collapsing, a symbol is revealed, and the number on the meter decreases by 1.
  • If the revealed symbol is on a position without a Power Zone™, a Power Zone™ forms on that position. If this position is adjacent to an existing Power Zone™, the existing Power Zone™ expands to include it.
  • If the revealed symbol is in a Power Zone™, every position inside the zone transforms into that symbol.
  • If there is no number on the meter when the reels stop collapsing, the spin ends, any drumsticks in the meter disappear, and the number of Power Zones™ on the reels reset to 16.

Free Games:

  • When 4 or more BONUS symbols land anywhere on the reels, the Free Games feature is triggered.
  • More BONUS symbols trigger more Free Games.
    • 4 BONUS symbols trigger 8 Free Games.
    • 5 BONUS symbols trigger 9 Free Games.
    • 6 BONUS symbols trigger 10 Free Games.
    • 7 BONUS symbols trigger 11 Free Games.
    • 8 or more BONUS symbols trigger 12 Free Games.
  • When the feature starts, the number of Power Zones™ on the reels reset to 16.
  • During Free Games, a MULTIPLIER symbol can land anywhere on the reels and multiply the win by up to 100x.
  • The multiplier values that can appear on a MULTIPLIER symbol are 2x, 3x, 4x, 5x, 10x, 20x, 25x, 30x, 50x and 100x.
  • At the end of Free Games, a pop-up message appears showing the results. Press the OK button to continue.

Return to Player:

  • The theoretical percentage return to player (RTP) is 95.05%.

Note on disconnections:

  • If you are disconnected from the Internet during:
    • A spin, the reels will display the result after you reconnect and any winnings will be added to your balance.
    • A bonus feature or the triggering spin, you will be automatically directed to the feature after you reconnect.
  • To see the outcome of your previous round after you log back into the portal, press the game history icon on the bottom toolbar.

Malfunction voids all pays and plays

How to play casino games

Here's a rundown of some of our most popular online casino games, including how to play them, and which offers the highest payouts.

Online slots

Online slots are played more than any other online casino games. They’re relatively simple to play, which makes them a great option for beginners. Slots can also offer large payouts, particularly for a jackpot win.

Playing slots online is very straightforward. The simplest form of online slots are three-reel slots, which are based on the traditional fruit machines you may have seen in arcades. In these slots, you’ll see three columns and three rows of symbols, with the middle row being the payline. You place your bet and spin the reel, and if you get a winning combination, you win the amount stated on the paytable.

There are many other kinds of slots online available at William Hill Canada, such as five-reel slots and video slots, but they essentially work in the same way. While the odds of winning at slots are slimmer than other online casino games, they do allow you to play with small stakes on a wide variety of slots. Slots with a jackpot offer a larger prize pool, so let’s have a look at those next.

Jackpot slots

The main difference between regular online slots and jackpot slots is that the former have a lower maximum payout. With jackpot slots, however, there are larger top prizes, sometimes offering up to a seven-digit win on just a single spin.

While 'jackpot' can refer to a fixed huge cash prize awarded during jackpot games, the term is also used to describe progressive slot games. For fixed jackpot slots the size of the jackpot is, well, a fixed amount. With a progressive slot, the size of the jackpot increases each time a player places a bet on the game. Progressive jackpot slots are a great way to add to your online gambling experience. These games can offer some of the most exciting experiences of all casino games, as they provide you with the chance to win the biggest payouts you'll find online.

Online roulette

Online roulette games consist of a wheel with spaces that are either red or black and are numbered from 1-36. This popular game is easy to learn and even easier to play. All you need to do is predict where the ball will land and place your bet. The roulette wheel then spins, and if it lands on where you placed your bet, you win.

You may think that only one variant of roulette exists in online casinos, as this is typically the case at real-world casinos. However, at William Hill Canada, you’ll find multiple variants available, including a European version with one zero, and an American version with two. You’ll also find a French version that offers slightly improved odds if you bet on an even-money proposition.

Online blackjack

To win at online blackjack, you need a higher number than the dealer without exceeding 21. You are dealt two cards and can ask for another card as many times as you want before you reach 21.

One of the great things about playing online blackjack is the number of variants available. At a real-world casino, you’re restricted to just one or two games, but you'll find more here at William Hill Canada, including Blackjack Scratch, Royale Blackjack, and Blackjack Super 21.

Live casino games online

This is where online casino technology really comes into its own. Some players enjoy the thrills provided by a real-life casino but also enjoy the convenience of playing online. Live casino offers the ultimate experience to these players. The only difference between playing live casino at home and playing at a land-based casino is that with the former, the action is live-streamed to your device.

You’ll be playing at real tables, with real cards, and with real croupiers dealing your cards or spinning the wheel. Depending on the game, you'll also be playing with other players from all over the globe. With the ability to enjoy live chat with both players and the dealer, live casino offers a fantastic opportunity to enjoy an immersive experience while playing your favourite casino games online.

Enjoy free online casino games with casino bonuses

An online casino bonus is a great way to boost your balance with extra funds and make playing your favourite online slots even more fun. Casino bonuses come in a number of different forms and are applicable to a variety of online casino games.

Almost all casinos bonuses are subject to their own terms and conditions, but what you get back is certainly worth it. If you look at our current bonuses, you’ll see our welcome offer, along with any other offers we may have available. There isn’t a one-size-fits-all bonus, so just make sure to keep your eye on our bonus page in order to enjoy our selection of games the fullest.