The last two bosses on Mission 50 are tough, but easily fooled. Once you find where the first of two bosses are (in the palace cut-scene), head east, towards the river.
The first boss will come down the stairs and approach your assassin. With luck, he will step off into the water and die. If not, push him off (easy) with a few sword blows). The second boss is killed in a similar manner.
Cleared Story (50)
Clear the story.
Death Money
Each time you die or lose a mission, you will get some money. If you die/fail over and over again, you can accumulate a huge amount of money.
Early Blowgun
You can get a blowgun in the training mission and keep it. Sneak up on Bowman and kill him. Save the blowgun until the end of the level and you can then use it.
Extra Mission Complete Poses
By pressing a direction on the D-pad after you complete a mission but before the "Mission Complete" message pops up on the screen, you will do an alternate pose. There are 4 alternate poses, one for up, down, left, and right.
Foreign
When you complete the game you get foreign clothes, they are actually army clothes, not very much more to say than that.
Effect - Code
Foreign set 1 (white) - Beat the game
Foreign set 2 (green) - Beat the game
Foreign set 3 (forest camo) - Beat the game
Foreign set 4 (winter camo/red) - Beat the game
Note: The foreign shoes will say boots instead of foreign.
Lurk and Feet Abilities
Perform 1000 Stealth Kills and these two abilities will be unlocked at the end of the mission you were performing.
Mission 10 Cleared (20)
Clear up to mission 10.
Mission 20 Cleared (30)
Clear up to mission 20.
Mission 30 Cleared (30)
Clear up to mission 30.
Mission 40 Cleared (40)
Clear up to mission 40.
Mission 5 Cleared (20)
Clear up to mission 5.
Mission 50 Cleared (50)
Clear up to mission 50.
Ninja 5 ratings
It's easy, regardless of game difficulty, to score a Ninja 5 rating on each mission in the game. If you go undetected, uninjured, and use no items, you'll get 300 points right off the bat towards your rating (100 points for each). Since you need 900 points total to reach Ninja 5, you're only 600 points away if you get the initial 300 points. Stealth kills are worth 120 points each, so killing five people by stealth means will earn you the points you need, though stealth killing a boss enemy is worth 300 points. Regardless, with these numbers in mind, scoring Ninja 5 on every mission is easy.
Roll Your Ass
Okay, okay, so you all know walking makes less noise than running in the game; however, sometimes you just need that extra speed running to get up close to enemies.
Rolling makes your character move at the same speed as running, but at a greatly reduced noise (compared to running). It's not completely quiet as crab walking, but it is not as loud as running across crickety floorboards. The best part: your assassin can change directions while rolling, so roll like Link if you need speed and stealth.
Training Mission Money
You can ace the Training Mission for mad cash. Repeat for ample funds.
Training mode experience
If you're very patient, you can level-up your character by playing and replaying Training Mode over and over again. It takes a lot of time, but you can theoretically max your character out with enough time spent in Training Mode, to the point where your character could get through the hardest difficulty in-game with no issues.
