Invasion of the Geminorons is a sci-fi puzzle game for Game Boy Color and Analogue Pocket.

The download includes a .gbc ROM file for use with an emulator or a real Game Boy Color, a .pocket file for use with an Analogue Pocket, and a PDF manual.

>>> Get the game on a real cartridge at Ferrante Crafts. <<<

Playing the web version

Click on the embedded player to enable sound.

Hardware requirements

  • To run on original hardware, the .gbc ROM file needs to go on a cartridge. There are no special requirements for cartridges; multi-game carts like the Everdrive GB and EZ Flash Junior will work, but so will any basic reflashable 32k cart.
  • You need a Game Boy Color, or compatible console (e.g. Game Boy Advance). A monochrome Game Boy (DMG, light, pocket) or Super Game Boy will not work.
  • The .pocket file runs directly from the SD card of an Analogue Pocket, with no cartridge required.


If you don't have a compatible console, you can still play the game using an emulator. Install a Game Boy Color emulator and use it to open the .gbc file. For best results, I recommend using SameBoy or bgb. Run in Game Boy Color mode.


Invasion of the Geminorons was playtested by Cian O'Carroll, Coffee "Valen" Bat, Geonjaha, Alphaknight, oshf, RedOctorok and YoshiTuk.

The music driver is hUGEDriver by Nick Faro.

The emulator used for the web version is binjgb by Ben Smith.

The game is built with GBDK-2020 and SDCC , and wouldn't have been possible without all of the people who contributed to those projects.

Míle Buíochas!

Updated 18 days ago
Rated 5.0 out of 5 stars
(2 total ratings)
Tags2D, 8-Bit, Aliens, Game Boy, Game Boy ROM, Homebrew, Pixel Art, Retro, Sci-fi, Turn-based
Average sessionAbout a half-hour
InputsKeyboard, Gamepad (any)
AccessibilityColor-blind friendly


Buy Now$4.00 USD or more

In order to download this game you must purchase it at or above the minimum price of $4 USD. You will get access to the following files:

geminorons.gbc 32 kB
geminorons.pocket 32 kB
manual.pdf 1 MB

Leave a comment

Log in with to leave a comment.