ZXRAMBLE ZX81

ZX81 16K

As seen on the Animated ALex YouTube channel  

ZXRAMBLE is a Shoot'Em up programmed on original hardware using BASIC, includes  two machine code routines for screen displays.

ZX81 LIVE STREAM - ZXRAMBLE

Your mission is to prevent the Alien spacecraft from reaching the lefthand side of the playing area, you are armed with a laser and the Aliens are armed too.

Aliens

')' Star-fighters = 1 point   

'O' Mothership = 5 points

Your craft '>'

O = Left   P = Right

Q = UP  A = Down

Z or M to fire