Saitama Saisyu Heiki (埼玉最終兵器)

details: co-composed with Soshi Hosoi (細井聡司) and kt2

source: original soundtrack booklet (from Lost Child Original Sound Track from S.S.H Side-A)

There are quite a few albums containing music from this game. The following albums are the soundtrack releases devoted to S.S.H.'s compositions:

1. Lost Child Original Sound Track from S.S.H Side-A (2003) [HBMC-008]
2. Lost Child Original Sound Track from S.S.H Side-B (2004) [HBMC-009]
3. Lost Child Original Sound Track Alternative Side-X (2004) [SIDE-X-01]
4. Lost Child Original Sound Track from S.S.H The Final Side-Z (2006)

details: composed original music and arranged tunes from the arcade game Gain Ground (ゲイングランド), originally composed by Katsuhiro Hayashi (林克洋) and Tohru Nakabayashi (中林亨)

sources:

３Ｄリメイクで新生したビジュアル

ステージもキャラクターも美麗にクールに再現。さらにサウンドを、インディーズシーンで名を馳せた “埼玉最終兵器” が担当、ビジュアルに負けないクールなサウンドをも実現。

-- the game's website

そして、もう一つお知らせ。
私が音楽を担当させて頂いているPS2用ソフト「ゲイングランド」が、
２月２６日、発売となりました。
宜しかったら手にとって頂けると幸いです。

-- S.S.H.'s website

soundtrack: Sega Ages Sound Track the Best Plus (2004) [KDSD-00051~2] {only contains three arranged tracks, no original compositions}

details: co-composed with Seiichi Hamada (濱田誠一)

source: original soundtrack, verified by game's website (not safe for work) (worksafe screenshot)

soundtrack: Sixty Nine2 Original Soundtrack from Saitama Saisyu Heiki (2004) [HBMS-013]

details: composed all music

source: original soundtrack website (screenshot)

soundtrack: eXceed 3rd -JADE PENETRATE- ORIGINAL SOUND TRACK (2007) [TMP-0701]

details: co-composed BGM with Hideki Yamamoto (山本秀樹) and m.c.tom

source: original soundtrack back

soundtrack: Amatsukaze ~Kugutsu Jinpuchou~ Original Sound Track (2008) [ALCR-108]

details: composed at least part of the soundtrack; the current soundtrack release is pretty light, so I'm not sure if there's more music yet to be released

source: original soundtrack booklet

soundtrack: PROJECT CERBERUS Phase 0.01 SSH (2009) [HBMS-309]