USER'S MANUAL DEFENSE - SYSTEM REQUIREMENTS - MSX1 with 16KB RAM - PURPOSE OF THE GAME - hit all the aliens attacking your space base. Avoid the bombs dropped by the aliens, otherwise lose a life. You have 5 lives for each game. For each yellow alien hit 200 points are awarded. For each celestial alien hit 100 points are awarded. - CHECKS - DIRECTION: cursor keys and space bar or joystick in port 1 and fire button A - EXTRA LIFE BONUS - Upon reaching for every 10000 points you will get an additional life, this will be confirmed by a sound effect. This manual accompanies the DEFENSE game 32K ROM. Freeware License (c) 2022 GAMECAST Entertainment.