I want to introduce you to another my project (status : in development) - lightforce 2k6.
This game is classic scroller type game, but in full 3d.
Game uses own 3d engine. Pure OpenGL + WinAPI. Written in delphi 7.



You can download alpha there:
http://darthman.com/games/lightforce/lf_alpha_02.zip (about 1Mb)