Freax! (c64/v20/+4)

FREAX is a simple Alien shootem-up game that compiles for the VIC20, CBM64 & CBM16/+4.
It is very playable, and yet it is only 2K in size!


The files in this archive are:

freax.txt - this file.
freax.s - CA65 compatible 6502 assembler source code.
freax-c64.prg - Commodore 64 version.
freax-v20.prg - VIC20 version (unexpanded).
freax-c16.prg - Commodore 16 or Plus-4 version.

To move left/right use keys I,P. hit SHIFT to fire. To exit game hit key X.

In the title screen you can select different modes by hitting M key. For a fast game select 1 (bit 0). For a simpler "classic" alien motion, select 2 (bit 1). For both, 3..

When the aliens move, different rows move in the opposite direction.
The game has a pattern of alien movements that span over 8 levels, each level lower and more difficult.
After 8 levels, the game "wraps" and keeps playing, but at a faster speed.
When an alien reaches the bottom, or you use all your lives, the game is over.
HINT: When shooting, shave the "side" aliens first, then try to eliminate all the ones going in one particular direction.