For the following cheats you MUST be facing ABSOULTE NORTH!
Go to the inventory and then to load game press and hold L + I + F + T.
Go to the inventory then to the large medipak press and hold C + T + R + L.
Go to the inventory then to the small medipak press and hold A + L + T + G
Go to the invetory then to the flares press and hold F + I + R + E.
Thanks to Revolution reader richard hennesy!