Storage medium storing game program and game apparatus for improved collision detection in a video game

A computer readable storage medium storing a game program and a game apparatus capable of preventing a game process which is performed, depending on a result of contact determination with respect to objects from being illogical for a player are provided. In the game apparatus, a contact determination section repeatedly determines whether a player object contacts a block. The results of determination are successively stored into a determination result storing section. A first processing section permits the player object to jump when, of the results of determination stored in the determination result storing section, at least one result of determination including a result of determination a predetermined period of time before indicates that the player object contacts the block.