well, on every port that it works on (including ps3) it only works for reptiles snack...
I know there's an interview out there w/ one of the non midway devs (likely Probe) that covers this topic, however I have no clue what it was from.
I remember the question was about fergalities, and the answer went on to cover this subject.
Basically a fix was thought to be too much trouble, then a fix was found and applied, then for some reason it was removed. The interview went on to cover more details on why it was removed, but idk enough to rebuttal any of that...