A game apparatus includes a CPU core. The CPU core firstly displays a field defined by a first side and a second side and shows a fixed block in the field. Then, the CPU core executes a player game process using the fixed block in response to a player's input operation, and displaces the fixed block in a direction of moving from the first side toward the second side based on result of the execution. The CPU core also executes an opponent game process and displaces the fixed block in a direction of moving from the second side toward the first side based on result of the execution. In addition, the CPU core determines whether the fixed block has reached the first section or not, and if result of the determination is affirmative, it executes a player defeat process. Moreover, the CPU core determines whether the fixed block has reached the second section or not, and if result of the determination is affirmative, it executes a player victory process.