Sega Master System / Mark III / Game Gear
Wait until any of these values is showing on the counter:
then collect the boxes with the question marks from the ships.
If you collect a certain amount of question mark boxes throughout the game, you will be rewarded with a power-up when you come to fight the final boss.
|20-24 boxes||Temporary invincibility|
|25-29 boxes||Fireball weapon|
|30+ boxes||Laser weapon|
Any question mark boxes you collect that are used for temporary invincibility will not count towards your total.
See the main page for Alien Syndrome (エイリアン シンドローム / 에이리언 신드롬)