Followed glitch pattern by Seckswrecks. Route differences:

2/Floor Hole: Same, but switch to Spy Hunter for last before it drops down

5/Legend of Zelda: Defender, hit goomba in the initial fall

6/Antlion: Defender, alternate shooting left & right, hit goombas before they fall through the floor

7/Rogue: Defender, race to bottom right goomba first, mario bounce to kill, back to defender to clear remaining goomas as they fall into path behind

10/Tunnels Under Sky: Fall through floor hole as mario, then flip to defender and clean up a bit. Wait for glitch to Gauntlet ghosts before finishing the level.

19/Crossfire & 20/Look Up: Flip to invader during death sequence to speed it up. Otherwise same.