Defend [your] base from incoming enemies. You have only one weapon at your disposal. Raise your mighty shields, and unleash their power at the right time to destroy your foes. Release is an action game that is played using one simple mechanic: press and release your joystick button at the right time. Different enemies with different attack patterns, bonus scores and power ups enhance the action packed gameplay. Note: Each game comes with a unique number on the inside of the box cover, indicating which manufactured game the purchaser has bought, as the games are made. The number shows how many have sold so far, and which one was purchased. (Comes with 'newer' plastic box, box insert, instruction manaul and game cartridge)