General Suggestion:
1. Invincibility (MOST COMMON, MUST HAVE)

2. Unlimited Money (Should at least have this, it's way more convenient than Add Money)

3. Unlimited Items (Please get this, it will be a lot more convenient to play the game this way... no need to go add items, e.g Knives, Medicine, Bombs, Arrows... etc)

4. Invisibility (being invisible is cool, assassinate people anywhere we like.. )

5. Unlimited Mission Time (It will be easier to play timed mission to achieve full sync, eg. Dungeon missions)

6. One Hit KO (easier to kill people but please make it to kill enemy only, as its way difficult to play if it kills your ally.)

Fun Suggestions (Not necessary to take this section seriously)
1. Super Ledge jump - Make it land on ledge no matter how far is the ledge.

2. Teleport Options - the usual save, teleport and undo cheat

3. Unlock all Weapons - this will be way fun for those that don't want to go through all those troublesome missions to get Weapons

4. Unlock all Outfits and armor - Same as above just for armor and outfits.

That's all for now... will update if more ideas pops up

[Edited by tzianhao, 9/23/2012 2:48:54 AM]

Are you suggesting to not make the trainer then and take a vacation instead? Sure no problem.

@Topic Creator - Please make this request again when the game is released and in the proper request thread