: Already tried that, and am still trying it. There are two chip slots in Poor
: Yorick (for the two chips in Robot World obtained through cooperative
: play), but they no longer serve a purpose. Apparently they were intened to
: open the secret exit to Two for the Price of One, but then the decision
: was to make that exit accessible to single players as well. There aren't
: any repair missions so far as I know before the rebellion level, By
: Committee, so there really is no other place to deposit that chip. There
: is a worry, however, that the extra chip might make it impossible to leave
: Hang Brain. Such a bug is known to exist in Rubicon - it's possible to
: pick up an extra chip and then not be able to leave a later level because
: you failed to pick up the chip on that level. Hopefuly Bungie didn't make
: the same mistake here, but there's only one way to find out.
Ah yes, I know both of the Rubicon glitch and the Hang Brain problem. Yes, Hang Brain requires that you grab the chip before you exit, so if you already have one, you're stuck. Don't get the chip.
Incidentally, there's another glitch in Rubicon like that, in Five Finger Discount. There's four chips on that one and you need to grab all of them (and obviously insert three somewhere), but it's possible to get into the final area with only two chips inserted, and once you're in the final area, you can't leave. Long story short, it pissed me off because FFD is a long damn level.