Mode of many
FPS games which allows the player to
walk through walls. Generally no clipping also makes the player unable to pick up any items as
collision detection is turned off. This is loads of fun if your game is hacked to allow codes in
multiplayer mode. In
DOOM you enter this mode by going
IDSPISPOPD,
DOOM 2 is
IDCLIP and I'm pretty sure it can be done in
Quake and many other
FPS games.
Don't go past the edge of the map! Ahhhhhh, video feedback!