To see the end sequence press [E] [N] and [D] at the same
time.

Tony Deng

The codes in these three games are the same: Press and hold these keys together until you get a result: A 2 [Enter] -Enable cheats F10 G -God mode F10 W -Warp F10 I -Free items F10 J -Super jump mode F10 N -No clipping