Well, I finally tested her, and after realizing that she can't use the shield abilities, I got a few ideas for her own versions of those abilities (similar to Silver's Psycho Boost interacting with the shields)
Whirlwind Shield: Enhanced Angel Wings strength (basically a higher double jump)
Elemental Shield: Enhanced vertical speed while diving downwards, with the usual flames left behind by the shield after hitting the ground
Armageddon Shield: Hitting a wall while diving downwards detonates the shield
Force Shield: Stops her after hitting a wall while diving downwards/slashing forward on air, enabling her to use Angel Wings to slowfall
Attraction Shield: Zoom towards the nearest enemy while diving downwards
S3&K Bubble Shield: Bounce up if she hits the ground while diving downwards, enabling her to dive again
S3&K Flame Shield: Enhanced horizontal speed while diving downwards
S3&K Thunder Shield: Keep height when diving downwards for 5 seconds, then the dive cancels itself
EDIT: I just noticed a bug with points awarded by enemies
When an enemy is killed directly by her Hand Sonic attack, it doesn't award any points at all!
But enemies killed by the slash performed after dashing or by the slashed robots' pieces actually award points normally