The Battle for Earth
Genre: Arcade Shoot-em-up Creation
2020 Language: Assembly Language System: Tandy Color Computer 3 (512K 6309)
is an arcade vertical Shoot-Em-Up
created for the Tandy Color Computer 3.
It requires 512K of RAM
and Hitachi 6309 CPU.
Will also run in the MAME and VCC emulators.
$10US Digital Download or $20US
Physical CD Media. See below for details.
the Gunstar back to the Alien's home world through 4 levels of Alien
attack to take out the Alien Overlord and end the invasion of Earth.
* 128 x 112 graphics x 16 colors
* 2 channel sampled sound effects
* 3-plane graphics engine
* High Scores saved
* Designed for Hitachi 6309 CPU
packaging on CD with printed instructions in a DVD case
wait! There's more!
Included on the Gunstar CD is a special Developer's Cut
release of my original 1986 game for the Color Computer 1&2, Donut Dilemma.
This is a special version tuned for the Color Computer 3 that includes
the following enhancements:
* Joystick Control
* Black border
* Improved game timing
* RGB and CMP palette support
* More fun
more information, CLICK HERE to
go to the Donut Dilemma 2019 Update
With so much extra space on the CD, I have included many of my earlier
CoCo releases such as Cosmic Ambush,
Pac-man, Rupert Rythym and Space Intruders along with
These games do not require a 6309 CPU.
Click here for Promo Video
Click here for the Development Blog
Buy it now and support future Color
Computer software development.
- For the General
Gunstar DSK image file plus
Game Instructions in PDF
be e-mailed directly to you.
The DSK file can be transferred to your CoCoSDC
easy and fast loading OR loaded
directly into an emulator OR transferred to a
physical floppy disk if you have the required
equipment to do this.
CD Media - For the Collector
all files on a professionally
manufactured and printed CD with color artwork and DVD case,
shrink wrapped and posted from the U.S. via Kunaki.com.
I will e-mail you the Digital Download so you can be up
and playing immediately while you wait for the CD Media to be manufactured and posted to you.
the bonus games listed above including the Developer's Cut version of Donut
At the Kunami.com order
page... Enter a QUANTITY then
your COUNTRY & ZIP and
press the CALCULATE SHIPPING button.
Gunstar will also work with the MAME and VCC
DON'T HAVE A 6309 INSTALLED?
Gunstar makes use of the extra speed available
with this CPU. Many have upgraded the standard 6809 to the improved
6309 and are able to run software which utilizes this CPU for a 10%-30%
speed increase for software designed to use it such as John Kowalski's
Donkey Kong transcodes & MOD music player, L. Curtis Boyle's many
6309 game optimizations, the NitrOS-9 Operating System... with more
software to come.
HAVE A CD DRIVE?
modern computers now do not have a CD-ROM drive. If you have purchased
the Physical CD Media, I can e-mail you the files found on the CD.
IT AVAILABLE ON 5.25" FLOPPY DISK?
NOT INTERESTED IN GAMES?
Not everyone is into games but consider
supporting my hard work by purchasing the $10US
package as a donation and show of support. It will give me the
encouragement to continue developing products for the CoCo in the