Cheats:
 in the game the compass does not always go transparent when facing
 the north, though it does on 3 occasions.they are when
 
 1st whenever you come to the monument shown in the video and stand 
 in such a way that it is to the north of you the compass will go 
 transparent
 
 2nd whenever there is a sliding in the north direction of lara 
 croft ,slide on it and while u are sliding the compass will go 
 transparent in the inventory. if the sliding is at the south 
 direction the turn around at 180 degrees and take a back jump 
 and while u are sliding backways the compass will go transparent
 in the inventory.
 
 3rd whenever you are climbing something which is in the north the 
 compass will go transparent
 
 
 Hint - Easy way to face exactly north:
 Find any block that faces north. Climb up or jump to it. 
 Go to the inventory screen and your compass should be transparent to 
 confirm she is facing exactly north. 
 
 
 Level skip:
 Have Lara face exactly north. Enter the inventory screen and look at 
 the compass. If it is not transparent, try positioning her again. Go 
 to "Load Game", hold H + E + L + P, then release those keys. Close 
 the inventory screen to advance to the next level. 
 
 Unlimited items:
 Have Lara face exactly north. Enter the inventory screen and look at 
 the compass. If it is not transparent, try positioning her again. 
 Go to the small medipak, hold G + U + N + S, then release those keys. 
 
 All weapons:
 Enable the "Unlimited items" code. Close the inventory screen. 
 Enter the inventory screen again. Go to the large medipak, 
 hold W + E + A + P + O + N + S, then release those keys. 
 
 
 To kill skeletons:
 The skeletons are invulnerable from any of Lara's 
 weapons, but they can be killed. To kill them you 
 need use a shotgun. When you use this on a skeleton 
 they will fall backwards. Do this near a big drop and 
 watch them fall down to their deaths!
 
 Shortcut to beat Van Croft:
 The whole of the second level is a simple race against 
 Van Croft. To beat him here are a few tips:
 
 When you need to swing on the bars do a running jump to 
 get a headstart When you need to jump over two pits, fall 
 down the second pit and head for the right hand corner and 
 there is a shortcut so you can get in front of him!
 
 
 Harder Route to the Iris:
 The whole of the second level is a race against Van Croy. 
 If you are a true tombraider then you will be interested 
 to know that there is another, alternative route!
 To access it you must first collect all 8 of the golden 
 skulls on the first training level.
 This route is much harder though!
 
 
 Gold Skulls in the Training Level:
 - The first skull is at the beginning toward the left. 
 - The second skull found is in the shallow water below 
  the very first jump you are instructed to do. 
 - The third is below the running jump section of training. 
 - The fourth one found is in the water of your swim training 
  session. 
 - The fifth one is found during the outdoor sequence where 
  the old man is fighting two of the wild boars. It's around 
  to the right, all the way into a right hand corner. 
 - The sixth one is on the floor on the right side of the room 
  where the spikes are near the exit door just before Lara goes 
  out to learn to crawl through the crawlspace. 
 - The seventh one is the one in the crawlspace (you called it the 
  fifth one.) 
 - The eighth one is on an elevated ledge/walkway that's off to the 
  right where Lara follows the old man up the ramp just before he 
  makes the speech about going left or right depending, because going 
  left is harder.
 
 Useful hints 
 
 Lara does all the aiming without your help, so jump 
 around like crazy in combat to avoid damage. 
 
 Look up often to check for special textures that 
 Lara can hold onto; there are a lot more monkey-swinging 
 areas in The Last Revelation than there were in 
 Tomb Raider 3. 
 
 Dont 
 stingy with them. 
 
 You can probably climb any texture that even remotely 
 looks like a ladder, so keep an eye out for horizontal 
 lines that resemble rungs.
 
 
 Hexcheat:
 
 0000004A savegame number
 00000190 small medic
 00000192 large medic
 00000194 flares
 00000198 uzi ammo
 0000019A revolver ammo
 0000019C shotgun normal ammo
 0000019E shotgun wide ammo
 000001A0 grenade normal ammo
 000001A2 grenade super ammo
 000001A4 grenade flash ammo
 000001A6 crossbow normal ammo
 000001A8 crossbow poison ammo
 000001AA crossbow explosive ammo
 00000170 binoculars value=9
 0000016F lasersight
 0000016B shotgun
 0000016C crossbow
 0000016D grenadegun
 0000016E revolver
 0000016A uzi
 00000169 pistol
 for guns type value 09