Hyoudo Riki is just an ordinary guy who likes to wear a tiger mask while Kung Fu fighting, which means he fits in real well at BATTLE ROYAL HIGH SCHOOL! 
 
Unfortunately for Riki, he's the doppelganger in our world of Byoudo, Master of the Dark Realm, and when a dimension gate opens between the two worlds, the evil Fairy Master tricks Byoudo into making an attempt to conquer out beautiful, and better lit, world. 
 
Now poor Riki is semi-possessed by his opposite number, and the minions of the Fairy Master are mutating his classmates into hideous lustful monsters. To make matters worse, all the inter-dimensional commotion has attracted the attention of a sword-happy exorcist and the heroic Zankan of the Space-Time Police! 
 
Which all means that Riki is about to take one bitch of a mid-term. The course is survival, and forget "Pass/Fail." This test is graded "Live/Die!" 
 
(Source: AnimEigo)

Non-anime roles:
~!Abobo in "Double Dragon" (Neo-Geo) (VG)
Andorf (Andross) in "Star Fox 64" (VG) (Japanese)
Ashuraman in "Kinnikuman Generations" (VG) (Japanese)
Ashuraman in "Kinnikuman Muscle Generations" (VG) (Japanese)
Ashuraman in "Kinnikuman Muscle Grand Prix 2" (VG) (Japanese)
Ashuraman in "Kinnikuman Muscle Grand Prix MAX" (VG) (Japanese)
Ashuraman in "Kinnikuman Muscle Grand Prix" (VG) (Japanese)
Baloo in "The Jungle Book" (Disney animated movie) (Japanese)
Baron Praxis in "Jak II Renegade" (VG) (Japanese)
Bass Armstrong in "Dead or Alive 2 Ultimate" (VG) (Japanese)
Bass Armstrong in "Dead or Alive 2" (VG) (Japanese)
Bass Armstrong in "Dead or Alive 3" (VG) (Japanese)
Bass Armstrong in "Dead or Alive" (VG) (Japanese)
Black Hole in "Kinnikuman Generations" (VG) (Japanese)
Black Hole in "Kinnikuman Muscle Generations" (VG) (Japanese)
Black Hole in "Kinnikuman Muscle Grand Prix 2" (VG) (Japanese)
Black Hole in "Kinnikuman Muscle Grand Prix MAX" (VG) (Japanese)
Borgan in "Lunar 2: Eternal Blue" (VG) (Japanese)
Burnov in "Double Dragon" (Neo-Geo) (VG)
Cobra Bubbles in "Lilo & Stitch" (Japanese)
Dai Maoh in "Super Dodge Ball" (Neo-Geo) (Japanese)
Demon Knight in "Dragon Quest" (drama audio)
Edge Master in "Soul Calibur" (VG)
Elvis in "WILD ARMS the Vth Vanguard" (VG) (Japanese)
General Pepper in "Star Fox 64" (VG) (Japanese)
Gilgamesh in "Final Fantasy XII" (VG)
Heihachi Mishima in "Death by Degrees" (VG) (Japanese)
Heihachi Mishima in "Namco X Capcom" (Japanese)
Heihachi Mishima in "Soul Calibur 2" (VG) (Japanese)
Heihachi Mishima in "Tekken 4" (VG) (Japanese)
Heihachi Mishima in "Tekken 5" (VG) (Japanese)
Hoslow in "Emerald Dragon" (Drama CD) (Japanese)
Illgoga in "Tobal No. 1" (VG) (Japanese)
Jack Mathers in "Time Crisis 4" (VG) (Japanese)
Jirado in "Astal" (Sega Saturn Game)
Lazarus in "Shining Tears" (VG) (Japanese)
Lord Zedd in "Mighty Morphin Power Rangers: The Movie" (live-action movie) (Japanese)
Master in "Xenosaga Episode II: Jenseits von Gut und Bose" (VG) (Japanese)
Mike Bison [Balrog] in "Street Fighter II Made Revenger" (drama audio) (Japanese)
Mr.Satan in "Dragon Ball Z Ultimate Battle 22" (VG) (Japanese)
Mr.Satan in "Dragon Ball Z: Budokai" (VG) (Japanese)
Mr.Satan in "Dragon Ball Z: Sparking!" (VG) (Japanese)
Orson Perrault in "Ace Combat 5: The Unsung War" (VG) (Japanese)
Pigma Dengar in "Star Fox 64" (VG) (Japanese)
Pigma Dengar in "Star Fox Assault" (VG) (Japanese)
Robin Mask in "Kinnikuman Muscle Grand Prix 2" (VG) (Japanese)
Robin Mask in "Kinnikuman Muscle Grand Prix MAX" (VG) (Japanese)
Robin Mask in "Kinnikuman Muscle Grand Prix" (VG) (Japanese)
Robin Mask in "Kinnikuman Nisei: New Generation Choujins vs. Legend Choujins" (VG) (Japanese)
Robin Mask/Barracuda in "Kinnikuman Generations" (VG) (Japanese)
Robin Mask/Barracuda in "Kinnikuman Muscle Generations" (VG) (Japanese)
Scott Dolph in "Metal Gear Solid 2: Sons of Liberty" (VG) (Japanese)
Shingen Takeda in "Samurai Warriors" (VG) (Japanese)
Shingen Takeda in "Samurai Warriors: Xtreme Legends" (VG) (Japanese)
Sigurd Sidmeyer in "Galaxy Angel Moonlit Lovers" (VG) (Japanese)
Taira no Kiyomori in "Genji: Dawn of the Samurai" (VG)(Japanese)
Uighur in "Hokuto no Ken: Seikimatsu kyûseishu densetsu" (VG)
Vargas in "Der Langrisser" (VG) (Japanese)
Volf in "Ninja Gaiden Sigma 2" (VG) (Japanese)
Volt Krueger in "The Bouncer" (VG) (Japanese)
VSSE Director in "Time Crisis 4" (VG) (Japanese)
WRO Fukuchou in "Dirge of Cerberus: Final Fantasy VII" (VG) (Japanese)
Yosemite Sam in "Looney Tunes" (Japanese)
Yosemite Sam in "Space Jam" (Japanese)
Zappa in "Poporogue" (VG) (Japanese)
Zou-Daimaoh in "Puyo Puyo" (PC Engine CD-ROM²) (Japanese)!~

Byoudou no Teshita