Power of Ten bonus modes change the sum, not the symbols
Three qualifying counts open three modes, and the easy mistake is to read them as small, medium and large. They are not. Each count selects a different rule for how the round's values are collected and when they are settled, and the middle one is the odd member in a way the other two are not.
What none of them changes is the order described on the result order page. Lines still settle before wheels, wheels still add to one another, and the stake still arrives once at the end. What changes is how many values reach that addition and at what moment it happens.
| Three scatters | 10 spins, a wheel more likely, ordinary settlement |
|---|---|
| Four scatters | 3 lives, wheels held and added at the end |
| Five scatters | 10 spins, a wheel guaranteed on every reel |
| Extra scatters | two add 2 spins, three add 4 |
| Unchanged throughout | lines, then wheels, then addition, then the stake |
Three counts, three rule sets
Three scatters open Deck of Fortune. Four open Whopping Wheels. Five open the hidden On the House mode. The counts do not grade one reward; they pick between three ways of running the same board, and two of those three are closer to each other than either is to the middle one.
Deck of Fortune and On the House both deal in spins and both settle each spin as it happens. Whopping Wheels deals in lives and settles once, at the end. That is the real division in this part of the game, and the scatter count is simply how it is reached.
Ten spins where a wheel is likelier
Deck of Fortune starts with 10 free spins and keeps the base rules intact, with a raised chance of a wheel appearing. A wheel that lands here behaves exactly as it does outside the mode: it waits for the lines, it reveals, it joins the sum, and the stake multiplies the sum at the end of that spin.
So the mode is a change of frequency rather than a change of method. More spins contain a wheel, each such spin settles the ordinary way, and nothing is carried between spins. Two further scatters during the mode add 2 spins, three add 4, and the extension does not alter the rules it extends.
Lives instead of spins, and a sum held back
Whopping Wheels is the one mode in the game that separates when a wheel lands from when it is worth anything. It begins with 3 lives. Each wheel that arrives sticks in its position, stays inactive, and refills the count back to 3. Ordinary line awards are still paid after each spin; the wheels are not.
The held wheels are all revealed together when the last life is spent, or sooner if the grid fills completely, and their values are added under the same rule as everywhere else before the stake is applied once. A full board is an alternative ending rather than a bonus for filling it: the mode stops because there is nowhere left to collect.
This is the only place in the game where the board accumulates across spins, and it changes what the grid is showing. In every other mode the positions describe the current spin. Here they describe a sum that has not been worked out yet.
The hidden entry, and the reel it guarantees
Five scatters open On the House, which runs 10 spins on the Deck of Fortune rules with one addition: at least one wheel on every reel, on every spin. Extra scatters extend it on the same terms, 2 spins for two and 4 for three.
Because the settlement rules are the three-scatter ones, the guarantee acts entirely on the first number in the addition. Every spin of the mode arrives at the wheel stage with five values waiting rather than nought or one, and the sum is then taken and scaled the ordinary way. It is the same arithmetic reached from a fuller board.
Buying an entry is the same sum at a stated price
Our source describes the modes and not the ways into them. Large listings record a panel inside the game offering five entries, priced at 3, 100, 200, 250 and 1,000 times the stake, and one of them adds that the panel may not be shown at all in markets where such purchases are not permitted. One of those five entries is the arrow round, and the listings agree that the hidden mode is not among them.
The only thing worth drawing out of that here is the unit. The prices are multiples of the stake, exactly like the prizes, the ceiling and the paytable bands — which is what makes them comparable with the rest of this site and also what makes them useless as advice. A price in the same unit as a prize tells you how the game denominates its figures and nothing about what any round will do.
What stays the same in all three
None of the three modes introduces a new value, a new symbol or a new way of combining numbers. The wheel still shows 10x, 100x, 1,000x or MAX WIN; a filled row still uses 100x, 1,000x or MAX WIN; several wheels still add before the stake is applied; and the top result still ends the round at the ceiling the moment it appears.
Which is the point of reading them this way round. Described as features, the three look like three different things to want. Described as accounting, they are three answers to one narrow question — how many values reach the addition, and when the addition is taken.
Questions about the three entries
Do more scatters simply award more spins?
No. Three, four and five scatters open three different modes with three different rule sets. Four scatters do not give a longer version of what three give; they give a mode that counts lives instead of spins and settles its sum at the end.
What does the three-scatter mode change about the sum?
Nothing structural. Deck of Fortune runs 10 spins under the ordinary rules, with a wheel more likely to appear. Each spin still settles lines first, wheels second, addition third and the stake last.
Why does the four-scatter mode not pay as it goes?
Because the wheels in it are held inactive. Each one that lands sticks in place and refills the count back to 3, and the stored wheels are only revealed and added together once the count runs out or the grid is full. Line awards are still paid every spin.
What does the five-scatter mode guarantee?
At least one wheel on every reel on every spin of the mode. It otherwise runs on the three-scatter rules, so the guarantee changes how many values enter each sum rather than how the sum is worked out.
What do extra scatters add during a mode?
Two more spins for two of them and 4 for three, in the two modes that run on spins. The four-scatter mode does not use that extension; it refills its count when a wheel lands instead.
Does buying an entry change the arithmetic?
No. Listings record five entries that can be bought from a panel inside the game, priced as multiples of the stake, and note that the panel may be absent where such purchases are not permitted. A bought mode runs under the same rules as a triggered one; the price simply arrives in the same unit as everything else.
Carry on with
The sequence every one of these modes still obeys is on the result order page, and the values being added are on the multiples page. The arrow round is the one part of the game that leaves the sequence behind entirely. On a phone covers where a spin count and a life count have to sit when the screen is narrow.