Because I love seeing Smash_Brother in despair, I will give him more despair by saying that Ouendan/Elite Beat Agents aren't ATs...
Here's the full list (27 in all)...
\effect\assist\ef_ast_ridley.pac, size:128 off:2A13D400 - Ridley
\effect\assist\ef_barbara.pac, size:81600 off:2A13D480 - Barbara the Bat
\effect\assist\ef_customrobo.pac, size:53728 off:2A151340 - Ray 01
\effect\assist\ef_cyborg.pac, size:30944 off:2A15E520 - Grey Ninja(?)
\effect\assist\ef_devil.pac, size:11520 off:2A165E00 - Devil
\effect\assist\ef_excitebike.pac, size:7008 off:2A168B00 - Excitebike Sprites
\effect\assist\ef_goroh.pac, size:128 off:2A16A660 - Samurai Goroh
\effect\assist\ef_heririn.pac, size:128 off:2A16A6E0 - Kururin Craft
\effect\assist\ef_hmbros.pac, size:9824 off:2A16A760 - Hammer Bros.
\effect\assist\ef_jeff.pac, size:18336 off:2A16CDC0 - Jeff (Earthbound)
\effect\assist\ef_joe.pac, size:51456 off:2A171560 - Knuckle Joe
\effect\assist\ef_jugem.pac, size:128 off:2A17DE60 - Lakitu
\effect\assist\ef_katana.pac, size:8096 off:2A17DEE0 - Kat & Ana
\effect\assist\ef_kururi.pac, size:77600 off:2A17FE80 - Jill (Drill Dozer)
\effect\assist\ef_lin.pac, size:39520 off:2A192DA0 - Lyn (Fire Emblem)
\effect\assist\ef_littlemac.pac, size:17568 off:2A19C800 - Little Mac
\effect\assist\ef_metroid.pac, size:66528 off:2A1A0CA0 - Metroid
\effect\assist\ef_nintendogs.pac, size:22112 off:2A1B1080 - Nintendog
\effect\assist\ef_resetsan.pac, size:90848 off:2A1B66E0 - Mr. Resetti
\effect\assist\ef_robin.pac, size:18048 off:2A1CC9C0 - Isaac
\effect\assist\ef_saki.pac, size:65504 off:2A1D1040 - Saki
\effect\assist\ef_shadow.pac, size:67840 off:2A1E1020 - Shadow the Hedgehog
\effect\assist\ef_stafy.pac, size:53632 off:2A1F1920 - Stafy
\effect\assist\ef_tank.pac, size:23648 off:2A1FEAA0 - Advance Wars Infantry Sprites
\effect\assist\ef_tingle.pac, size:133216 off:2A204700 - Tingle
\effect\assist\ef_waluigi.pac, size:6944 off:2A224F60 - Waluigi
\effect\assist\ef_wright.pac, size:17632 off:2A226A80 - Dr. Wright