Timeslip was an old project that I wrote at college. It was written in pure WinG32 and directX (allowed you to switch between) and had a fully functional level editor with brushes and a polished interface written in pure Win32.
The game revolves around a time distortion phenomenon whereby every 60 seconds time slips and a copy of yourself up to those 60 seconds begins to replay in the backround – you must use this copy to help you progress through the level – however, if you come into contact with it time breaks down and the universe explodes – or you have to start the level again :-p.
The game (and title!) is based on the Net Yaroze version of the game by David Johnston and Mike Goatly – YouTube
I have yet to dig out the files, so keep posted.