Stage 1-1 to Stage 3-2 is same regarding frames.
Currently 104 frames faster @ Stage 4-2 start than adelikat thanks to manipulation enemy spawn side.

Comparison sheet: http://docs.google.com/spreadsheets/d/1qW7_UFKPhVVKdtoNhUTDTOdic0MqA9Zo0AlquZMZfH8/edit?usp=sharing
LUA script (not all object groups are implemented yet): http://pastebin.com/Lq5DDLCc

Spammed various patterns throughout to movie to decrease the monotonity of jumping and slashing. No complaints allowed.

Delay route is same and fastest currently (possibilities is 16 subpos * time value (maximum delay which could save time is something like 5 frames, this mostly depends on level architecture and the possibilities of spawning sides for enemies) * number of enemies need to be manipulated (usually 1, sometimes 2 edit: and don't forget to add yourself in the calculation, as your position also manipulates and carries over stages as well as from the map screens).

Level comparison and notes: http://docs.google.com/spreadsheets/d/1qW7_UFKPhVVKdtoNhUTDTOdic0MqA9Zo0AlquZMZfH8/edit?usp=sharing

Randomness depends on time (not in-game time) and player X subposition. Therefore I
- Delay 1 frame starting the game to spawn first enemy on left side
- Delay 1 frame at the end to manipulate next level first enemy position
- Delay 2 frame after 2-1 boss and before 2-2 boss.

Player subpos ranges from 0,16,32,48...240 (16 values)
Timer I believe is only a byte, I should write down more values.

Level by level comparison: http://docs.google.com/spreadsheets/d/1qW7_UFKPhVVKdtoNhUTDTOdic0MqA9Zo0AlquZMZfH8/edit?usp=sharing

Have no idea if I posted my lua script already, here's a totally not newbie friendly one: http://pastebin.com/hrJDu5VV