Things I've noticed that haven't been mentioned (I think):
- Ms. Slithers says "My juicy alumni" during the fight
- Ms. Slithers stays upright once you beat her
- More planet thingies (maybe)?
- Pressing "Shift" Makes a scary noise, but only sometimes
- I think the color shift from getting damaged has been slowed down and lasts longer but I could be wrong about that
- Weapons feel heavier when flying (they dangle good)
And that's all I think I noticed. Keep up the great work!