This is a homebrought game, run on Gameboy Color. A game by: László Rajcsányi -  Wilds, 2022. Created with GB-Studio 2.0.0-beta5 by Chris Maltby!

Also available for download in .CIA format for the Nintendo 3DS virtual console! 

Fillo is an emperor penguin who spends most of his time in Antarctica. Now he had a little trouble because his territory was occupied by the invaders. Help Fillo designate an area where he can spend his time with his love. In a mission through 15 levels, you must collect all the ice diamonds and trick the enemy penguins that take back the area you have already occupied. Time is also your enemy, you have a total of 20 seconds on each level to finish it. Good luck!

The game was inspired by the graphics of plenty of other games. These are all Commodore16 games like: Major Blink, Petch, Boulder Dash, Harvey Headbanger. The music is transcripts of similar melodic songs by Rob Hubbard.

Thanks to Chris Maltby for this awesome program (GB-Studio) that makes it easy to make a Gameboy game.

Start the gameStart
Move: Cursor Keys
Push: A
Pause: Start or Select

Start the game: Enter
Move: Arrow Keys
Push: Z
Pause: Enter or Shift

You can download the ROM file of the game from the WLS website!

Rated 4.3 out of 5 stars
(3 total ratings)
AuthorRajcsányi László (WLS)
Made withGB Studio
TagsGame Boy, Game Boy ROM, gbc, lacoste, nintendo, pixel, Retro, rob-hubbard, wls


Fillo GBC (WLS).cia 3 MB


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The game froze for me after level 8. Amazing job with making this feel like a real game boy game. The screen transitions (on winning and on losing a life) are such a nice little touch. The gameplay is more nuanced than it looks on first glance. Finding the optimal order to fill out the squares while adapting to the enemy movements and pathing optimally isn't as easy as it looks. The obsticles were a bit awkward to move around in some levels (especially the one with a small square bottom right, I think it was level 3 or 4). Great game anyway

Thank you very much for this positive post. There must have been a problem then because I tested it now and the game doesn't stop. I'm sorry you'll have to start over to get to the end. :)

I just realized you seem the be a contributor to both this and the Commando game? How is this possible? are they ports, or is at least one of them a port of a game you (and your team) made previously?

Fillo is a self-developed game, and Commando is a rewritten version of an existing Commodore version. It's just a mix of versions C64 and C16. Since both are retro, I thought I would inject both. :)

Alright, understood. Keep it up regardless


Made it to Level 9; will need to go for higher score after trying out the other entries. Good controls, nice sound design and music (not too loud or grating also helps). Love how the lives system is visualized after you lose one. Also love the visual representation of the timer you made. 

Good challenge and design for the most part, though the only gripe I have is with a few tile fill outs in regards to objects blocking your path. Sometimes when trying to get within a close enough range to fill in those tiles it won't register a fill in at certain points, whereas if you move to say the north portion of the tile with the same parameters it will then fill in. 

Otherwise very solid and straightforward design.


It's great that you wrote about it, thank you. Level 9 is really good at first, you should reach 15 to see the end. :)