The team at Kirameki have been working on a translation patch for Captain Rainbow, similar to the Fatal Frame 4 patch. Point your browser through here for more information.

I've had my eye on this for a while now.
At least we can confirm that Birdo is male... and a foul mouthed one at that.

Is this patch likely to be endorsed by Nintendo like that other game they did (Fatal Frame, I think)?

I'd like to be able to buy a JAP copy, run the patch and play it without risking Nintendo bricking my system.

Actually when Mappo arrests her for going into female toilets, you have to find something to prove that she's female. There is a 'vibrating object' censored with a question mark under a cushion in her house that you need to use to prove that she's female.

Anyway, I've been wanting to play this game for a while now so I'll probably get this at some point after the fan translation is done.

Look no further than the SMB USA Famicom commercial. Birdo/Catherine was a pimp.
http://www.youtube.com/watch?v=8KD-X4ZEMe4