A storage medium having stored thereon a game program executable by a computer 21 of a game apparatus 1 including touch coordinate pair input means for outputting coordinate information based on a predetermined coordinate system in accordance with a touch operation performed by a player. A first object P1 and a second object P2 are displayed on a display screen based on first object position data DC3 and second object position data DC5. While input coordinate pairs are being detected, the first object position data DC3 is updated based on the input coordinate pairs. The second object position data DC5 is updated based on the first object position data DC3.