3) The shishihodokan is fueled by depression.  Ergo, if
Ryouga gets happy, he'll need to find something else, right?

Theoretically yes. But since he's fighting when he uses that attack, he usually doesn't stay happy for long during a fight.

	Is Ryouga able to use the Moko Takabisha?  Is Ranma able to use the

Nope...

Shishi Hokodan?

Nope... The 'mokotakabisha' is Ranma's attempt at doing the 'shishihoukoudan'

Kun-chan...