- last post: 01.01.0001 12:00 AM PDT
there is a cheat that can be enabled by use of a trainer or developer's mode called superjump. you may be thinking of that.
there are no skulls in halo PC, with the obvious exception of the oddball. These skulls, however, can be spawned by use of devmode. they are of no use at all, except in oddball games