Comparing to a previous TAS made by EzGames69 and Bloopiero, there are some strats and theory strats from RTA runs that hasn't been used/checked
Previous TAS is made on Easy mode which looses time on summary screens, lag and lac of some exclusive to easy mode strats
it was also done on version rev00, with current strats can rev01 can be faster due to a new boss strat on 4-2
current TAS uses jump cancel, crouch cancel saves few frames per door across the whole run
EMSB-extended magic spin buffer, a different variation of you're glitch that can be only performed in world 3 (I'll refare a sparkle storage found EzGames69 and Bloopiero as MSB)
videos for levels: 1-3; 2-1; 2-3; 3-2; 3-3; 4-3; 5-1; 5-2; 6-1 ->
https://drive.google.com/file/d/1wrDnBhlcgNQGlAv-yAeK21u5BSup1anS/view?usp=drive_link
1-1 and 1-2 need to replace jump cancel with crouch cancels
1-3 death warp + boss hat quick kill
2-1 RTA boss strat need a check if it's faster the current TAS strat
2-2 only cancels
2-3 there is a way to speed up a fade out at the end but not sure if possible to combine it in a way to make it waster then curren TAS strat
3-1 boss strat with destroyed bridge
https://youtu.be/enW-9Fe3ka4?t=360
3-2 EMSB, you can grab a platfrom during a spin and be able to kill one of the zombies froms 2nd phase already in 1st phase) (video in link + WR boss kill
https://youtu.be/enW-9Fe3ka4?t=423)
3-3 there is a theoretical way to optimize the movement with EMSB cause it changeing the trajectory form a platform grab catapult launch (video in link)
4-1 boss kill with MSB (Easy difficulty only)
https://youtu.be/enW-9Fe3ka4?t=568
4-2 boss kill MSB (requires REV01 version)
https://youtu.be/enW-9Fe3ka4?t=696
for 4-2 there was one theory that it can be possible to clip into a wall. If you do a dance move on top of the stage in a way that enemy on the right side of the screen is behind a wall, game will force him to clip through a wall just to stand next jackso, so in theory it may be for player to clip through wall too
4-3 boss kill with MSB
https://youtu.be/enW-9Fe3ka4?t=833
there is a version of this strat from left side but requires a big improvement to make it faster (starting on the left allowes you to save a girl that end a level, faster)
5-1 death warp (video in link above) need some improvent to save time + boss MSB kill
https://youtu.be/enW-9Fe3ka4?t=912
5-2 door gltich (not sure if it can be faster (video in link) + boss skip
https://youtu.be/enW-9Fe3ka4?t=968
5-3 crouch cancels like in every previous level as possible
6-1/Mr. Big fight there is some new knowlage about a fight and bullet behavior (included in link above)