I'll keep a list of all videos in the 'Videogame Videos' section of TBT's site here, organized by system. Just click the name of any video on this list to see it on the site. Be sure to comment on videos at the site.
WII
-Wii Play: Laser Hockey & Fishing
Virtual Console
-F-Zero Gameplay
-R-Type 3 Gameplay
-Sim City Gameplay
-Donkey Kong Country Gameplay
DS
-Custom Robo Arena Online Battles
GAMECUBE
-SSBM: Ness vs. Fox
-SSBM: Ness vs. Ice Climbers
-SSBM: Luigi vs. Marth
WII
-Wii Play: Laser Hockey & Fishing
Virtual Console
-F-Zero Gameplay
-R-Type 3 Gameplay
-Sim City Gameplay
-Donkey Kong Country Gameplay
DS
-Custom Robo Arena Online Battles
GAMECUBE
-SSBM: Ness vs. Fox
-SSBM: Ness vs. Ice Climbers
-SSBM: Luigi vs. Marth