Tenchu - Dark Secret - Platform: Nintendo DS

Easy items money: 
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An easy way to get scrolls is to fill your inventory with bamboo traps. 
Then, 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 for money.

Kill types:
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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 Kill. 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 Boxes. Once you get kills with all the 
different types, the background of that enemy's kill gallery will turn 
gold.