A serious question about TMNT III

[neatoman]

If Kenshin got April's clothes when he replaced her, did he run around in her panties the entire time or did those go with her like the Walkman?

No but seriously, I just watched the movie for the second time in my life (after at least a decade I think) and I don't think the conflict betweeen Norinaga and the villagers was ever explained, why was he at war with them? There was bunch things that weren't explained or didn't make sense but this was probably the biggest problem as far as the plot was concerned.