A primitive "clone"/"demake" of game VVVVVV by Terry Cavanagh for Nintento GameBoy written using GBDK. Not a complete game in any way, just a few screens and objects. Primitive sounds, no music. Made a few years ago with almost no C/C++ skills, just for fun.
Play using a GameBoy emulator or on a real device using EverDrive.
GBDK: http://gbdk.sourceforge.net/
https://en.wikipedia.org/wiki/VVVVVV