Lunar Battle

Atari (unreleased prototype) · 1982

by Daniel Ferrer

Details

Original hardware

Atari 6502, AVG, 2× POKEY

Romset

roms/lunarbat.zip

Controls

The stick turns, and up thrusts. Button 1 fires, button 2 thrusts, button 3 is the shield and tractor beam, button 4 inserts a coin and then starts. On the web: Z, X, C, V and the arrow keys.

Analog controls

–

Last update

2026-11-08

Changelog

1. v1.12026-11-08
   • The romset can live in any folder of the card. The game looks in .roms/, then roms/, then searches the whole card, and remembers where it found it (.conf/<romset>.loc), so the next start goes straight there; if it is moved, it is searched for again.
   • Settings go in .conf/ and romsets in .roms/: the UVMC2's menu hides folders whose name starts with a dot, so the card shows only the games. A card set up before keeps everything: the old config/ and roms/ are still read, and nothing is written to them any more.
   • Without the romset on the card the screen says ROM FILE NOT FOUND and the name of the zip it wants.
2. v1.02026-11-05
   • First release, with everything Gravitar 1.0 got: it is the same board.
   • Sound through the jack: its two POKEYs emulated, at the level measured against MAME on Gravitar.
   • The dots show: the stars and the shots.
   • One picture a frame: the board runs at 61.5 Hz, and a second picture inside one frame made still screens blink.
   • Button 4 inserts a coin and starts; fire, thrust and the shield on buttons 1 to 3, the stick turns.
   • The cabinet's switches as MAME ships them: four lives.
   • The picture is MAME's 420 x 400 window, fitted to the screen. Starts at 50 Hz.
   • An options screen at start, after the Vectrex Studio intro: screen vertical or horizontal, refresh, brightness, controls (the buttons can be remapped, and the choice is saved) and calibration.