[0001] This invention relates to gaming or amusement-with-prizes machines of the kind generally
known as 'fruit machines', in which three, or sometimes more, reels carrying symbols
are set in rotation and then stop in turn at random intervals and if the resulting
combination of symbols on the three (or more) reels appearing on a given line in the
display, the 'win line', is one which has been designated a winning combination, the
player receives an award or a credit. Instead of actual reels, it is known to use
other forms of display which simulate rotating reels to a greater or lesser degree,
for example the Panascope, or a video screen on which images of the symbols appear.
Such machines will hereinafter be referred to as of the kind set forth.
[0002] Many special features are provided nowadays in fruit machines, indeed they have to
some extent taken over from the basic game, in that most of the bigger wins are obtained
by the features rather than by the initial result when the reels first come to a halt.
In a so called 'ladder' or 'trail' feature, steps in the ladder or trail may be illuminated
as a result of certain symbols, e.g. symbols bearing superimposed numbers, appearing
on the win line. When the 'ladder' or 'trail' is completed, a jackpot prize or another
feature which may result in a jackpot prize may be awarded.
[0003] On certain occasions after a non-winning game, determined for example at random or
when a particular symbol such as a "?" appears on the win line, a so called 'skill
stop' or 'pseudo skill stop' feature may be provided to assist completion of a ladder
or trail. In a 'skill stop' or 'pseudo skill stop' feature steps in the 'ladder' or
'trail' are illuminated either sequentially along the 'ladder' or 'trail' or for a
brief period of time at random positions in the 'ladder' or 'trail' and the player
attempts to stop the feature by performing a 'skill stop' operation at the instant
when the end step of the 'ladder' or 'trail' is illuminated. In a 'pseudo skill stop'
feature the machine itself determines whether or not the end step of the 'ladder'
or 'trail' is illuminated, although it appears to the player that the instant the
'skill stop' operation is performed determines whether or not the trail is completed.
[0004] Amongst the many special features which are provided nowadays in fruit machines,
one which has proved popular is the so-called 'nudge' feature, by which the player
is sometimes given the opportunity at the end of a game which did not result in a
win, to advance one or more of the reels by a single step, or sometimes more than
one step, to bring a fresh symbol onto the win line and thereby change what was a
losing combination into a winning one. This feature may be offered apparently at random
after a non-winning game, or a number of 'nudges' determined in one of a variety of
ways may be awarded as a special feature after completion of a 'ladder' or 'trail'.
[0005] One known type of special feature awarded after completion of a 'ladder' or 'trail'
involves the illumination of some symbols in a number of rows or columns of symbols
representing coins, tokens or nudges and the player is given one or more 50:50 chances
to 'link up' the illuminated symbols by pressing a 'gamble' button. The feature ends
when the player has exhausted these chances and he is then awarded as a prize the
total number of coins, tokens or nudges which have been linked together during the
feature.
[0006] The aim of the invention is to provide a still further and particularly attractive
special feature on these lines.
[0007] According to the invention a gaming or amusement-with-prizes machine of the kind
set forth is provided which has a display in the form of a grid or matrix of symbols
representing, for example coins, tokens or nudges, and on certain occasions, for example
randomly at the end of a non-winning game or on completion of a 'ladder' or 'trail',
a special 'skill stop' or pseudo skill stop' feature becomes available in which the
player has the chance to perform at least one 'skill stop' operation on the matrix
and an award is given to the player in accordance with the total number of symbols
illuminated on the matrix of the display at the end of the feature when one or more
'skill stop' operations have been performed by the player.
[0008] In a preferred embodiment the special feature involves a first 'skill stop' operation
in which the symbols in a first row or column of the matrix are illuminated either
individually for a brief period of time at random positions in the row or column or
sequentially along the row or column, and the player attempts to press a 'skill stop'
button at the instant when the symbol at the end of the row or column is illuminated.
The player may then be given the chance to illuminate symbols in further rows or columns
in the matrix, e.g. by means of one or more 50:50 gambles or by a further 'skill stop'
operation, the total award of coins, tokens or nudges being proportional to the total
number of symbols lit on completion of the feature which preferably is a multiple
of the number of symbols lit in the first row or column after the first 'skill stop'
operation.
[0009] The present invention will now be described, by way of example only, with reference
to the accompanying drawing. In the drawing a fruit machine has three reels 10, 11,
and 12, a start button 13, three 'nudge' buttons 14 each associated with a respective
one of the reels 10, 11 and 12, a 'skill stop' button 15, a display in the form of
a 'trail' 16 and a special feature display 17 in the form of a 5 x 5 matrix of symbols
18 representing e.g. coins or tokens.
[0010] On certain occasions during play of the machine, for example on completion of the
trail 16, a special feature is awarded which utilises the matrix display 17 and the
'skill stop' button 15. In the special feature the symbols A,B,C,D,E in row 1 of the
matrix are illuminated for a brief period of time in sequence, the process being repeated
continuously until the player presses the 'skill stop' button 15. If, for example
the 'skill stop' buttons 15 is pressed at the instant when symbol D in row 1 is illuminated,
all of the symbols A to D in row 1 are illuminated permanently and the player is given
the opportunity to advance up the matrix. The player may be given, for instance, either
a 50:50 chance to gain symbols A to D in line 2 in a gamble or a chance to perform
a further skill stop operation in which lines 2,3,4 or 5 are illuminated for a brief
period of time either in sequence or at random and the player attempts to press the
'skill stop' button 15 at the instant when line 5 is illuminated. The feature is terminated
either when the player fails to gain the next line in the matrix or when the further
'skill stop' operation is completed. The player is then awarded a prize equivalent
to the total number of symbols illuminated in the matrix. For example, if symbols
A to D in row 1 are lit up after the first 'skill stop' operation, and symbols A to
D in rows 2 and 3 are subsequently lit up in the second stage of the feature the player
is awarded 4 x 3 i.e. 12 coins or tokens in total.
[0011] It will be appreciated that the special feature described above may be modified in
various ways without departing from the scope of the invention. For instance, the
number of rows or columns in the matrix may vary; in the initial 'skill stop' stage
of the feature the symbols in row 1 may each be illuminated for a brief period of
time at random until the 'skill stop' button is pressed; or instead of coins or tokens,
'nudges' may be awarded with the total number of nudges awarded corresponding to the
total number of symbols illuminated in the matrix on completion of the feature.
[0012] The special feature of the present invention is particularly attractive because it
gives the player the chance of obtaining a large jackpot award if he can display sufficient
skill in choosing the best moment to press the 'skill stop' button.
1. A gaming or amusement-with-prizes machine of the kind set forth which is provided
with a display (17) in the form of a grid or matrix of symbols (18) representing for
example coins, tokens or nudges, and on certain occasions, for example randomly at
the end of a non-winning game or on completion of a 'ladder' or 'trail' (16) a special
'skill stop' or 'pseudo skill stop' feature becomes available in which the player
has the chance to perform at least one 'skill stop' operation on the matrix and an
award is given to the player in accordance with the total number of symbols illuminated
on the matrix (17) of the display at the end of the special feature when one or more
'skill stop' operations have been performed by the player.
2. A machine according to claim 1 in which the special feature comprises a first 'skill
stop' operation in which the symbols (18) in a first row or column of the matrix (17)
are illuminated either individually for a brief period of time at random positions
in the row or column or sequentially along the row or column and the player attempts
to press a 'skill stop' button (15) at the instant when the symbol at the end of the
row or column is illuminated.
3. A machine according to claim 2 in which the player is given the chance to illuminate
symbols in further rows or columns in the matrix.
4. A machine according to claim 3 in which symbols in further rows or columns may
be illuminated by means of one or more 50:50 gambles or by a further 'skill stop'
operation.
5. A machine according to claim 3 or claim 4 in which the total number of symbols
illuminated is a multiple of the number of symbols lit in the first row or column
after the first 'skill stop' operation.
6. A machine according to claim 3 in which the special feature is terminated either
when the player fails to gain the next row or column in the matrix or the further
'skill stop' operation is completed.