Experience the Game Boy Color remake of Janusz Lewandowski's 1995 classic "Kulki". Connect five or more balls in a row and challenge your puzzle-solving skills!
Click on the game screen to enable keyboard controls
Connect 5+ balls of the same color in a line to score points.
Take Qulqy with you! Download the ROM for your Game Boy Color or emulator, or explore the source code.
Qulqy is a faithful Game Boy Color demake/remake of Janusz Lewandowski's 1995 classic "Kulki" for Windows 3.1. This modern interpretation brings the addictive ball-connecting puzzle gameplay to the iconic handheld platform while maintaining the original's simple yet challenging mechanics.
Developed by plyr0 (Mateusz Teklak) as an entry for the Game Boy Competition 2025, Qulqy showcases the capabilities of modern Game Boy development tools while paying homage to classic puzzle gaming.
Yes! Download the .gbc ROM file and use a compatible flash cartridge to play on your Game Boy Color or Game Boy Advance.
Absolutely! Qulqy is completely free to play online and download. The source code is also available under the BSD 3-Clause license.
Easy mode has 5 colors (1 point per ball), Sane has 7 colors (2 points per ball), and Hard has 8 colors (3 points per ball). More colors make it harder to form lines.
Yes! The source code is available under the BSD 3-Clause license, allowing you to modify and redistribute the game while preserving copyright notices.
The current version doesn't save progress between sessions. Each game is independent, focusing on achieving high scores in individual sessions.
Qulqy was developed using GBDK-2020 (C compiler for Game Boy), Aseprite for graphics, and various development tools. Check the source code for full details!