My first run using FCEU. I can't stress how good frame advance is. The entire run was done frame by frame, so it is very precise.
New Improvements:
1-1. Uses the ladder warp glitch, which requires both careful timing of the "Get enemy stuck in the floor" glitch and "Fall through the floor" glitch, to get to Birdo and finishes the level 4.25 sec faster.
1-2. Toad is used instead of Luigi. This time Toad is unharmed from picking up the enemy underneath the flying carpet. Jumping on the carpet is more precise. Over 3 seconds is saved by using the Illusionary item glitch to defeat Birdo with a vegetable instead of the key.
4-1. Faster by 14 frames using a quick double jump.
6-3. Is around 5 seconds faster using up+down to jump the wall instead of double jump.
7-1. Around 7 seconds faster using up+down.
Just about all levels and bosses are done frames faster.
I also try to improve the run aesthetically.
Glitches used:
  • Double jump
  • Double jump from under enemy
  • Faster running with Toad carrying an enemy
  • Pick up nothing
  • Pick up enemy from underneath
  • Get enemy stuck in the floor
  • Fall through the floor
  • Ladder warp
  • Illusionary Item
  • Up+down fast climbing glitch
Features:
  • Takes damage to save time
  • Aims for fastest time
  • Uses warps
  • Genre: Platform
  • Abuses programming errors in the game

Bisqwit: Processing.