We are still searching for game pictures and screenshots for Y.A.S.I. (Vectrex). We do not have any cheats, codes, or hints yet.

The game has several extra modes to unlock, which can be accomplished by playing a game, the first of which can be unlocked by scoring at least 1000 points. The more points that are scored during a game, the more modes will be unlocked. Note: Erasing the high scores will also erase the Y. A. S. I. screen configuration and the extra modes. The modes are as follows:


A: Regular Y. A. S. I. game (no features)

B: Guided missiles

C: Moving bunkers

D: Guided missiles and moving bunkers

E: Cloaking invaders

F: Guided missiles/cloaking invaders

G: Moving bunkers/cloaking invaders

H: Guided missiles/Moving bunkers/Cloaking invaders