(UPDATED VERSION)
This is a remix of Shikieiki Yamaxanadu's theme (from Touhou Project), created by Sota Systems and I, Robbi-985 (aka SomethingUnreal). It's called "Critical Judgement". It's actually based on "Koko de atta ga rokujuu nenme" by IOSYS, which is a remix of the same theme.
We finished making the music on 23 May, 2008.
Simfile (difficulties "Medium" and "Challenge") created by me and tested by Sota. ^^
A third chart of steps on StepMania's "Edit" difficulty have been created by rphaku!

MP3 duration: 2 mins 18 secs
Genre:        Techno
BPMs:         82.5 ~ 495
Difficulty levels:
 "Medium"    (difficulty 6)  - 621 (559 taps, 62 holds)
 "Challenge" (difficulty 9)  - 763 (584 taps, 179 holds)
 "Edit"      (difficulty 10) - 950 (794 taps, 156 holds)

I recommend for the simfile to be played at x1 speed (or any non-constant speed), since there are several BPM changes throughout the simfile.

Like all simfiles I've made so far, this is designed to be played with a keyboard. 

Images used in the simfile are created by several unknown authors. The images were obtained from "http://danbooru.donmai.us".

Sota-sama (Sota Systems) can be found at YouTube as "Sota250993". Just about everywhere else on the Internet, you can find him as "SotaSystems".

I, Robbi-985 (Something Unreal), can be found at YouTube as "SomethingUnreal", or at my site, "http://robbi-985.homeip.net:8000". At Niconico and HongFire, I go by the name "WhyAgain", for a reason explained at my site. xP Just about everywhere else on the Internet, you can find me as "Robbi-985". Also, feel free to email me at "robbi985@gmail.com".

Rphaku can be found at BemaniStyle as "haku277", or at his site, "http://rphaku.fileave.com".

Enough rambling.
Enjoy the simfile! ^^

- Robbi-985 aka Something Unreal