This is a homebrew game for 1980's era Atari 8-bit XL/XE computers.

It was built using the cc65 toolchain.

Targets NTSC, works in PAL mode but timer is a tad slower.

Vector Doubles is a simple and addictive 2 player cooperative matching game.

(Can be played with only 1 player)

A game has not started if the timer is not counting down, arrows continue to fall during in this 633C mode but players cannot move and no points can be scored.

Hold fire on either stick for 3 seconds to start a two-minute game.
The timer will start counting down.

While not firing, move left or right one column. Center stick to move again.

While holding fire, move up, down, left, or right to set a match arrow.

After setting a match arrow you can move to other columns to set more match arrows.

Match a falling arrow, gain 1 point.

One player catches a falling man, gain 5 points.

Both players catch a falling man, gain 10 points.

Miss a falling arrow, lose 1 point.

Miss a falling man, lose 5 points.

Best score is tracked.