A downloadable C64 game for Windows, macOS, and Linux

Help Grunio, the guinea pig, eat all carrots in this retro mini game for Commodore 64!

Gruniozerca is a Commodore 64 version of NES/Famicom mini game with the same title. Both games were created to support Polish 24h charity game stream - Gramytatywnie.

Use joystick connected to port 2 to move Grunio on the screen and catch all carrots before they touch the ground. Make sure Grunio's color match carrots' color when you catch them. You could change Grunio's color by pressing fire.

How to run?

This game was designed and created to run on a real hardware - Commodore 64 or Commodore 128 in C64 mode - and is compatible with both PAL and NTSC versions.

Once diskette image is downloaded you could transfer it to a 5 & 1/4 inch floppy disk using the available solutions (like X1541 cable) or copy to the SD2IEC device.

You can also run the game on any C64 emulator available for Windows, Mac and Linux that supports diskette images (like VICE).

To load a game type LOAD "*",8 and press return. After couple seconds when the system respond with READY. type RUN and press return to start.


This mini-game, similar to its NES/Famicom version, is provided to you for free. Please consider to support charities during annual Gramytatywnie 24h game streaming event. You could find more information on the official website and Facebook page. Gramytatywnie is organized by arhn.eu.


  • code/gfx/msx by Lukasz Kies
  • original NES/Famicom version by Lukasz Kur & Ryszard Brzukala
  • Grunio as himself

Copyright (c) 2017 6bits

Published Nov 05, 2017
PlatformsWindows, macOS, Linux
Tags2D, 8-bit, commodore, Commodore 64, Retro
Average sessionA few minutes
InputsGamepad (any), Joystick


gruniozerca-win-mac-linux-latest.zip 10 kB
Version 1 94 days ago


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