They are listed in the video description:
Obstacle Course - Map04
Megaman 8-Bit Deathmatch - GutsDozer
Jumpmaze - map13
RocketJump Xtreme - map06
Jenesis - Map12
BLDSTLP - Map02
Biowar - Map03
Dark Tartarus - Map10
Dark Tartarus - Map20
Lunatic - Map01 (with Rampancy.pk3)
Alienated - Map03
Dark Tartarus - Map13
Equinox - Map09