Sorry I meant Catharsis - strange I said Transition because I don't even have Beat (other than the demo).

Anyway I think what I did before the stage started was lanched a string of beats when selecting it - I dodged some and hit others. Could have been a bug or a way of playing the boss. I wish I defeated the boss now instead of giving up (I did try for 40 minutes tho).

@madgear That actually makes sense. Did you start in HYPER?

i just tried dying during the final boss for the hell of it, and all it does is reset. leaving the wiimote alone doesn't work, either — it just times out and auto-disconnects, halting the game in its tracks. so much for that theory :3

i also tried shooting a whole bunch of beats at the stage select screen (as madgear described) and hitting them all at random. didn't manage to trigger anything. i may try that again on and off whenever i'm in the mood to play some Catharsis. I actually got up to Extra tonight, something i've never done in Catharsis before, haha. all that fighting to get to the final boss over and over has paid off a little, i think :3
_{someday i'll get to meta... someday}

@Odnetnin

No I started as you usually do (with the pink bat). Everything was exactly the same as when you start Catharsis except it was the boss there instead. The background was the same as the start with the planet that flies close to the screen then backs off into the distance. The reason why I thought it was a bug was because of the background - the planet animation stopped in the distance and just hung there, spinning slightly - obviously you don't normally see that far because stage 2 starts before then (and I spent 40 mins trying to defeat the boss).

I've got a feeling had I beated the boss, it'd have just carried on to the normal end sequence. I can't say for sure, but I don't want any of you wasting your time because of a bug. Afterall, if it was a secret, I reckon they'd have given you extra to play, rather than less.

Write it on the facebook group's wall.

Regarding the TvTropes page on it, not to toot our own horn, but some of my fellow tropers did a lot of the decoding before FATE even came out. I myself made some contributions at some point too.

(This is why I say in my sig to check that site out. You'll never know what you may find)