Out of "Find The Spy Factory"
From Glitches
This is a glitch in the Xbox version of Metal Arms: Glitch in the System, but it should work for the PS2 and Gamecube versions as well.
The method for getting out of the level is pretty easy to follow from just watching the video, but if you're going to try this you should try and stick close to the path I take or you might get taken back to the last checkpoint. There are lots of things to watch out for that I avoid but it might be difficult to catch those things without firsthand experience.
Submitted by SPJglitches