I managed none of those things, but I realised how derped my handling of animations was, now I've come to the point where I need to control when the character ducks for enclosed spaces, bleuch.
Lesson learned - plan first, build later.
Anyway- latest update here, added effects for the attack move ( press down quickly after jumping) , add a bunch of transitional animations, some of which work, some which don't at all.
Duckwalk - works if you press left while crouching or holding down when landing, but doesn't work if you're walking, THEN press down.
Landing While Walking - now does a different landing sequence if you're moving.
Trying to walk into a wall - doesn't work - was trying to do something similar to the way sonic pushes against things - just testing if the user is 1- against wall, and 2 - pressing that direction.
Version 5 I guess, except offline it's the beyond 80th save now.