Download full game (.gb):
https://mega.nz/folder/FZgwnZbJ#joFbKI8AkaapnSeL1T6Frw
Ancient Dungeon [TEST].gb - you can switch lvl using START button
Ancient Dungeon.gb - normal game
!!!! USING https://github.com/Zal0/ZGB/tree/b8cc0c0b9459bf41d84160069bcd35e4ccde6c4f ZGB version from May 10, 2018 !!! and this wiki: https://github.com/Zal0/ZGB/wiki/Installation/dd9f90243b6e2e9bd1e37deccafd3c49b2b66084
You can check the game by open ZGB_TEMPLATE.gb from \bin in Gameboy emulator for example VisualBoyAdvance: http://www.emulator-zone.com/doc.php/gba/vboyadvance.html
GameBoy game created using ZAL0/ZGB engine.
GBDK: https://sourceforge.net/projects/gbdk/files/gbdk-win32/2.95-3/
ZAL0/ZGB: https://github.com/Zal0/ZGB/wiki
Good GBDK tutorial to start with: https://videlais.com/2016/07/03/programming-game-boy-games-using-gbdk-part-1-configuring-programming-and-compiling/
GBDK tutorials on wiki: http://gbdev.gg8.se/wiki/articles/Tutorials