March 17th, 2004
"Aniki Shin-Sekai" Album Release.

March 1st, 2003
The 13th album Genki o Daseyo!! was released and sold at the chain Animate.

November 24th, 2002
His Live Talk Show in Tokyo and Osaka were scheduled be held. The Tokyo live show was held, but the Osaka live show was canceled because one of his family members was hospitalized.

September 15th, 2002
The live show Genki o Daseyo!! was held and turned out great.

September 10th, 2002
He worked on the PS2 game music Get Backers.

August 9th, 2002
He was in a commercial that was aired on the big screen at the JR-Ikebukuro Station. It was the TV program Aricon.

August 4th, 2002
His 13th album Genki o Daseyo was released and sold on a website. This album is considered to be one of his best works, similar to Bakuhatsu Sunzen, Ganbaro-!! and Kimi wa Alright .

June 24th, 2002
He worked on the PS2/SCEJ game music Saru Gecchu2. He was suited in creating this kind of music.

April 29th, 2002
His 10th Anniversary Live Show was held at the Tokyo Paradize Hall with special guest Ms. Mariko Kouda, and it turned out to be a very exciting concert.

March 28th, 2001
The game Super Robot Taisen Alpha Gaiden was released.
He composed the game sound, and the song Araburu Tamashii plus Alpha which was done with Mr. Ichiro Mizuki. The song was used in the game.

February 7th, 2001
His album Asu wa Hareru was released.
This album contains the songs that he has been working on for a long time.
The contents are vocal songs, and this is different from his original style on Aniki.

January 10th, 2001
His new song Asu wa Hareru was used as the theme song on the TV program Game no Kimo (TVK Television/KBS Kyoto).

January, 2000
Aniki Zenya-Mesiya Collection was released.
He worked with Mesiya to produce this album and contains his early game music works before Cho Aniki.

March 15th, 2000
Two albums were released on the same day!
Cho Aniki. Otoko no Tamashii/ Koji Hayama His 11th original album.
Super Robot Taisen Alpha Original Score 1 -Tenku no Sho-.
The music, lyrics, arrangements, performances and sampling were done Koji Hayama. This album also contains a duet with Mr. Ichiro Mizuki.

April 8th, 2000
A live show was held at the Tokyo Eggman in Shibuya to celebrate the release of a new album Cho Aniki Otoko no Tamashii.
The live show was another exciting one by Koji Hayama and Brothers and the hall was filled with his fans.

September 24th, 2000
He was the host on some Internet Radio programs: Hayama. Omimayu-Gamani Paradise and Hayama Koji no Aniki no Teikoku.
These programs are from the Internet Radio Station Chara Ani Radio Station.

December 10th, 2000
A live show was held at the Tokyo Setagaya Paradise Hall Koji Hayama & Brothers Live, 20th Century's Otoshimae
At the show, two promotion videos were made. The show turned out to be very exciting, and ran for more than two and a half hours.

September 18th, 1999
He was a special guest at Ms. Mariko Kouda Live Concert, and did two duet songs with her.
The performances made the audience go wild and this was enough to show that Aniki was still alive.

September 22nd, 1999
The soundtrack for Front Mission 3 (PlayStation) was released. He worked on half of the tracks on this album, and did some orchestral sound.

September 27th, 1999
Ten Plants 2 - Children Songs was released.
He did one track on this album, and the track was a slow ballad song which he promised his fans that he would do.

April 23rd, 1999
His 10th original album - '99 Cho Aniki Densetsu -The Best & Super Remix - was released.
His works on game music were Front Mission 3 (PlayStation), Super Robot Taisen series Cho Aniki (WonderSwan) and one other.

1998
He started writing for a few magazines - Tech Saturn, ASCII Publishing, The Bots, SataMaga and Mens no Teikoku.
He also also wrote the series Hayama Koji no Game Gyokai Tokusetsu Ring for Dreamcast Magazine.
He worked on a number of popular game titles during the year.

August, 1997
His 3rd original album Teikoku (Empire) was released.
He worked on the game music for De-Zard, Dansenryaku Strong Style and the game 3DOM2. He also worked on the opening theme of Toshinden URA.
He left TWOFIVE Co.Ltd. to establish his own music business: Hayama Ongaku Seisaku.

April, 1996
His record company was changed to Toshiba EMI.
He released his new album Kinzoku Bat Ichi-go.
He and the New Super Brothers held a live show at On Air East, and the live show was released on video.
The 2nd duet song with Ms. Mariko Kouda Futari wa Boukensha was released.
The song was a hit and was used in Twinbee Paradise (Drama CD series).
At this time, he contracted to TWOFIVE Co. Ltd.

March, 1995
Ane-san and Gran Chaser were released. In September, his best album Game Music Is Dead was released. He performed at the Game Music Festival '95, and did the last part of the event. He got a job as a DJ at Tokyo FM on the radio program Dengeki Paradise.

1994
A duet album with Ms. Mariko Kouda was released and was very popular.

July 30th, 1994
Performed at the Game Music Festival '94 at Nihon Seinenkan. He did the last part of this live show.

January 1st, 1994
His 1st original album Cho Hayama was released. He did more live shows in February and March, also he was on radio a few times. A collaboration album Barairo no Jinsei was released.

August 19th, 1993
Game Music Festival '93 was held at Nihon Seinenkan. It was the first time he had joined and performed at the festival. There were a few radio shows and events after this festival during the year.

June 21st, 1993
The single CD Jingi naki Aniki was released. The song hit 16th on the Oricon Pops ranking.

April 27th, 1993
Aniki, Koji Hayama's debut live show was held at InkStick Suzue Factory. More than 800 fans came to the live show, and it was such an exciting one. The show was well known at InkStick. His life changed that day as he started to be interviewed and published.

February, 1993
Cho Aniki was released and was sold out on the release day. This made his debut live show happen, which was held on April 27th, 1993.

1991-1992
In the first half of the year after becoming a free-lance musician, he got more work and created music for Moto Roader MC, Macross Eien no Love Song and Cho Aniki. People start talking about his work on Cho Aniki.

1992
In the summer, he got an offer to make the soundtrack for Cho Aniki at NEC Avenue. The recording was completed in December 1992.

1991
He got fired from Winds Inc. He was then unemployed, but was making the album Shubibinman 1 & 2. After that, the Music Office Cube Co Ltd. hired him, and he worked on Taiheiki, Blue Almanac, Shubibinman 3 and more, but he quit six months later, as he wanted to be independent.

1989-1990
He established a new company Winds Inc. with seven other friends, and composed the game music for Shubibinman 2 and Ranma 1/2.

1989
He quit Brain Grey Inc, and established his own company, but it failed. The game they were working on - Lightning Backas - The Knight of Iron - was produced by Mesaiya instead. He did a few works at Mesaiya.

1988-1989
He started working at Brain Grey Inc. and got into the gaming industry; he worked on the game music for Last Armageddon. The soundtrack was released on CD.

1986-1987
He entered a Medical specialist school and managed to graduate. He also started to do part time work at Mesaiya which paid about $100.00 a song. He worked on four game titles: Gaia no Monsho (Gaia's Crest), Elsreed Senki, GaiFrame and one more.... (He forgot the title)

1984-1985
He failed the exam to enter university, and started to compose music around this time.

1980-1983
He joined three bands when he was a student at Yokosuka Gakuin High School. One of the bands - Goruji Tai Kids - became well-known in Yokosuka.

1979
He played the song Alice with the drums and the guitar in front of all students at his Junior High School festival, became very popular among his juniors and decided he wanted to be famous.

August 4th, 1965
He was born in Yokohama City, Japan.