Tenchu: Dark Secret
This game is titled Tenchu: Dark Secret in North America, Europe, and Australia, and Tenchu: Dark Shadow in Japan.
The ten types of kills you can get are as follows:
Sword Kill, Trap Kill, Poison Kill, Water Kill, Explosive Kill,
Spike Kill, Tiger-Trap Kill, Fall Kill, Surprise Kill, and Joke
Note: In order to get Surprise Kills and Joke Kills, you need
to unlock the scrolls that allow you to make joke books and surprise
box. After you get kills with all the different types, the background
of that enemy's kill gallery will turn gold.
Easy items and money
The easiest way to get scrolls is to fill your inventory
with bamboo traps. Simply line them up one after another in the
path of an enemy so that he will hit the first one and bounce
to the next one until he has hit all eight traps. If done correctly,
each time the enemy bounces off a trap he will drop one of the
following: money, ninja gear ingredients, or sometimes a scroll.
Also, you can sell the eight trap kills you just got at the shop