I suggest the following psuedo-gay bars:
Club Mirror (South 6 West 2 Tel. 011-562-8779), not really a Lesbian or Bi bar, but has a lot of gay guys.
Locotonte (South 7 West 4, Suskino Kaikan Building 4F) has had a few gay nights and women-only nights.
Bar Orb (Tel. 090 2742 7070) [http://ip.tosp.co.jp/i.asp?I=kaekinky] This is a lesbian-friendly bar in Sapporo. It has a relaxed atmosphere, wonderful cocktails, and an awesome bartender/owner. Location: Sapporo, Chuo-ku, South 5, West 2, 4F in the ΠποΩ building.
Ku: for Women, in the 5th Keiwa Building (South 5 West 6 Tel 011-533-0222,
website www.geocities.co.jp/Foodpia-Olive/2202/. The owner, Keiko, and her girlfriend, Kaori are wonderful. Several parties are hosted here. Itfs also the offline meeting place for the Dyke Island website: [www.geocities.co.jp/Milkyway- Vega/1356/]
BYCS: Sapporo, Chuo-ku, South 6, West 8. Good cruising bar, lots of sex between people there.
Spike: Tel: 011 563 3155 website: www.otoko-spike.com Sapporo-shi, Chuo-ku, South 6, West 7. (in the Ά» building). Bigger than BYCS, same situation of sex.