Abstract: A game apparatus assigns an item, which includes one or more characters and in which points are set for each character, to a player. A storage device stores items owned by the player. When an instruction is given to synthesize a first item and a second item out of multiple items stored in the storage device, a control device generates an item that includes a specific character common between the first and second items and in which points of the specific character are set according to points of the specific character of the first item and those of the specific character of the second item.

Abstract: A game system includes a setting unit allocating each item of a plurality of game items with its own item-selecting probability. The system also includes a selection unit configured to perform an item-selection process in accordance with the item-selecting probabilities that are selectively allocated to the plurality of game items. The system also includes a game item granting unit that grants each item to player in accordance with a result of at least one of the item-selection processes performed by the selection unit. The system also includes an advantage granting unit that grants at least an advantage to game player, if the item granting unit has granted, to player, at least one predetermined item included in the plurality of items. The system also includes a setting unit that re-allocates a higher item-selecting probability to at least one game item, if the setting unit recognizes that a predetermined condition is satisfied.