Slot machine and playing method thereof

Abstract

A slot machine according to the present invention comprises: a display to which a plurality of symbols are arranged; a selection switch for selecting a symbol that is to be a particular symbol out of the plurality of symbols, and a controller which determines the symbol corresponding to an input from the selection switch as the particular symbol, determines a payout ranking of the particular symbol at random, and allots a prize based on the payout ranking, in an event that a predetermined number or more of at least one particular symbol is arranged to the display as a result of rearrangement of the plurality of symbols arranged to the display.

1 . A slot machine comprising: 
 a display to which a plurality of symbols are arranged;    a selection switch for selecting a symbol that is to be a particular symbol, out of said plurality of symbols; and    a controller,    said controller determining the symbol corresponding to an input from said selection switch as the particular symbol,    determining a payout ranking of the particular symbol at random, and    allotting a prize based on said payout ranking, in an event that a predetermined number or more of at least one particular symbol is arranged to said display as a result of rearrangement of the plurality of symbols arranged to said display.    
   
   
       2 . The slot machine according to  claim 1 , 
 wherein    said controller further comprises    counting the number of games, and    receiving an input from said selection switch on condition that the number of games has reached a predetermined number.    
   
   
       3 . The slot machine according to  claim 2 , 
 wherein    said controller further comprises    receiving an input from said selection switch during a predetermined time period provided on condition that the number of games has reached a predetermined number,    determining the symbol corresponding to the input from said selection switch as the particular symbol, upon receipt of the input from said selection switch during said predetermined time period, and    determining at random the particular symbol out of the plurality of symbols, upon no receipt of the input from said selection switch during said predetermined time period.    
   
   
       4 . The slot machine according to  claim 1 , 
 wherein    said controller further comprises    changing the number of symbols to be selected as the particular symbol on condition that a predetermined condition is satisfied.    
   
   
       5 . The slot machine according to  claim 4 , 
 wherein    said controller further comprises    counting the number of games, and    changing the number of symbols to be selected as the particular symbol, every time the number of games reaches a predetermined number.    
   
   
       6 . A slot machine comprising: 
 a display to which a plurality of symbols are arranged;    a selection switch for selecting a symbol that is to be a particular symbol, out of said plurality of symbols; and    a controller,    said controller counting the number of games,    receiving the input from said selection switch during a predetermined time period provided on condition that the number of games has reached a predetermined number,    determining the symbol corresponding to the input from said selection switch as the particular symbol, upon receipt of the input from said selection switch during said predetermined time period,    determining at random the particular symbol out of the plurality of symbols, upon no receipt of the input from said selection switch during said predetermined time period,    determining a payout ranking of the particular symbol at random, and    allotting a prize based on said payout ranking, in an event that a predetermined number or more of at least one particular symbol is arranged to said display as a result of rearrangement of the plurality of symbols arranged to said display.    
   
   
       7 . The slot machine according to  claim 6 , 
 wherein    said controller further comprises    changing the number of symbols to be selected as the particular symbol on condition that a predetermined condition is satisfied.    
   
   
       8 . The slot machine according to  claim 7 , 
 wherein    said controller further comprises    changing the number of symbols to be selected as the particular symbol, every time the number of games reaches a predetermined number.    
   
   
       9 . A slot machine comprising: 
 a display to which a plurality of symbols are arranged;    a selection switch for selecting a symbol that is to be a particular symbol, out of said plurality of symbols; and    a controller,    said controller counting the number of games,    changing the number of symbols to be selected as the particular symbol every time the number of games reaches a predetermined number,    receiving an input from said selection switch during a predetermined time period provided on condition that the number of games has reached a predetermined number,    determining the symbol corresponding to the input from said selection switch as the particular symbol, upon receipt of the input from said selection switch during said predetermined time period,    determining at random the particular symbol out of the plurality of symbols, upon no receipt of the input from said selection switch during said predetermined time period,    determining a payout ranking of the particular symbol at random, and    allotting a prize based on said payout ranking, in an event that a predetermined number or more of at least one particular symbol is arranged to said display as a result of rearrangement of the plurality of symbols arranged to said display.    
   
   
       10 . A playing method of a slot machine comprising the steps of: 
 receiving an input from a selection switch for selecting a symbol that is to be a particular symbol, out of a plurality of symbols which are to be arranged to a display,    determining the symbol corresponding to the input from said selection switch as the particular symbol,    determining a payout ranking of the particular symbol at random, and    allotting a prize based on said payout ranking, in an event that a predetermined number or more of at least one particular symbol is arranged to said display as a result of rearrangement of the plurality of symbols arranged to said display.    
   
   
       11 . The playing method of a slot machine according to  claim 10 , 
 further comprising the steps of    counting the number of games, and receiving the input from said selection switch in said step of receiving the input on condition that the number of games has reached a predetermined number.    
   
   
       12 . The playing method of a slot machine according to  claim 11 , 
 further comprising the steps of    determining at random the particular symbol out of the plurality of symbols, upon no receipt of input from said selection switch,    receiving the input from said selection switch in said step of receiving the input, during a predetermined time period provided on condition that the number of games has reached a predetermined number, and    determining at random the particular symbol out of the plurality of symbols in said step of determining the particular symbol at random, upon no receipt of the input from said selection switch during a time period.    
   
   
       13 . The playing method of a slot machine according to  claim 10 , 
 further comprising    a step of changing the number of symbols to be selected as the particular symbol on condition that a predetermined condition is satisfied.    
   
   
       14 . The playing method of a slot machine according to  claim 13 , 
 further comprising the steps of    counting the number of games, and    changing the number of symbols to be selected as the particular symbol in said step of changing, every time the number of games reaches a predetermined number.    
   
   
       15 . A playing method of a slot machine comprising the steps of: 
 counting the number of games,    receiving an input from a selection switch for selecting a symbol that is to be a particular symbol out of a plurality of symbols which are to be arranged to a display, during a predetermined time period provided on condition that the number of games has reached a predetermined number,    determining the symbol corresponding to the input from said selection switch as the particular symbol, upon receipt of the input from said selection switch during said predetermined time period,    determining at random the particular symbol out of the plurality of symbols, upon no receipt of the input from said selection switch during said predetermined time period,    determining a payout ranking of the particular symbols at random, and    allotting a prize based on said payout ranking, in an event that a predetermined number or more of at least one particular symbol is arranged to said display as a result of rearrangement of the plurality of symbols arranged to said display.    
   
   
       16 . The playing method of a slot machine according to  claim 15 , 
 further comprising a step of    changing the number of symbols to be selected as the particular symbol on condition that a predetermined condition is satisfied.    
   
   
       17 . The playing method of a slot machine according to  claim 16 , 
 further comprising a step of    changing the number of symbols to be selected as the particular symbol in said step of changing, every time the number of games reaches a predetermined number.    
   
   
       18 . A playing method of a slot machine comprising the steps of: 
 counting the number of games,    changing the number of symbols to be selected as the particular symbol out of a plurality of symbols which are to be arranged to a display, every time the number of games reaches a predetermined number,    receiving an input from a selection switch for selecting a symbol that is to be a particular symbol, during a predetermined time period provided on condition that the number of games has reached a predetermined number,    determining the symbol corresponding to the input from said selection switch as the particular symbol, upon receipt of the input from said selection switch during said predetermined time period,    determining at random the particular symbol out of the plurality of symbols, upon no receipt of the input from said selection switch during the predetermined time period,    determining a payout ranking of the particular symbol at random, and    allotting a prize based on said payout ranking, in an event that a predetermined number or more of at least one particular symbol is arranged to said display as a result of rearrangement of the plurality of symbols arranged to said display.