Shadow of the Ninja/Weapons

Each weapon in the game is either primary (can be used any number of times) or secondary (can be used only a limited number of times). While you possess a secondary weapon, you cannot use your primary one until you fully use the secondary weapon you've got.

Each weapon in the game has a level from 1 to 3. When you pick up different primary weapon, your primary weapon swithches, and its level becomes 1. When you pick up the same primary weapon you've got, its level increases by one. Taking too much damage decreases your weapon level by one but cannot decrease it past the 1st level. Picking up secondary weapon doesn't affect your weapon level. Still, if you possess secondary weapon, picking up primary weapon and taking damage increase and decrease the level as usual.

Primary weapons
Katana is your default weapon. It's a sword for close combat.
 * Level 1: Short range strike.
 * Level 2: When you strike, energy wave appears increasing the range.
 * Level 3: Energy wave (and thus the range of this weapon) become longer.

Kusarigama is a kama on a chain. You won't get this weapon by default. Still, you can obtain it on the very first level.
 * Level 1: The range is quite long, and you can press + for vertical strike or ++ or ++ for diagonal strike. Still, its quite slow compared to katana, and you cannot harm an enemy point blank.
 * Level 2: Attacks become faster.
 * Level 3: When you strike, energy wave appears. It can be used to kill enemies very close to you, but cannot be used vertically and diagonally.