What singles have b-sides that were never released on an album?

[Picaflor 7/4]

Actually, teens was put on an album, just not an ayu album. It was thrown on to TRF's lif-e-motions album. "teens meets Ayumi Hamasaki". It's an ayu cover of the same song by the same band released back in 1995 on their "Happening Here/Teens" single. Then they made an acoustic version of it and put it on her Startin' single.

These are all of her b-sides in chronological order. the ones in bold are the ones that never made it to an album.

01. FRIEND
02. Two of us
03. LOVE ~since 1999~
04. ever free
05. theme of a-nation '03
06. GAME
07. alterna
08. Will
09. teens "acoustic version"*
10. Beautiful Fighters
11. Secret
12. decision
13. Life
14. RED LINE ~for TA~

*I'm a bit iffy with this one because the original version was never released in ayu's discography (but it was in TRF's since it is a cover). The song on the Startin'/Born to Be... single is "teens (acoustic version)" which is obviously not "teens (Original Mix)" but I threw it up there anyways because neither it, nor the original mix ever made it onto an ayu album.