where have all the old school cheats gone?

[docjan_uk]

Back in the old days, after I'd played through a game, e.g. Sonic/Sonic 2 or whatever, I'd end up trawling through some magazines and finding the old left right up down a b a b do... (you get my point) cheats to do various things.

Searching around and it seems I can't seem to find these exploits for games like RFOM or GRAW2. Anyone know of em'?
I'd love to beable to just go through the games in God mode or with some uber weapons, or fly. It's all good .