Oh it's been forever since I've looked at this topic.
Manipulation of missing objects.
You'll never find it now~
6: Ability to Feed on Souls
Yoshika.
9: Manipulation of Directions
I wonder if she/he would get lost a lot. That'd be ironic.
10: Ability to Manipulate the Chemical Properties of Metals
I've thought about using that for a character.
- Manipulation of Smoke ~ http://en.wikipedia.org/wiki/Enenra
Lololol the irony that I'm making an Enenra character.
The ability to change the colour of anything.
I mentioned that before.
One character I created is a Songbird Youkai, who can heal people with her singing abilities. So her powers are somewhat the opposite of Mystia's in that they help instead of harming. Though I can see her being more relevant in an RPG spinoff (official or by fans) than a danmaku games...she's not really a good fighter and if she were in a game she'd probably be a Stage 1 boss that happened to get attacked just because she wandered into Reimu or Marisa's path.
Oh what a coincidence, I have a flamingo that does a similar thing.
how about a character that creates explosions from impact?
How about a character that can create explosions from air?
The ability to manipulate the extent of electromagnetic waves.
Or just Manipulation of Magnetic Force.
Ability to the extent of manipulating states [of matter]
I've been thinking of that one too.
Manipulation of Energy/Matter.
If you control energy, you control everything? Because everything IS energy
Meiling
manipulation of water.
Nitori
The ability to break barriers.
I'd say enough firepower can bring you that.
The ability to cause spontaneous combustion of objects.
oh fun.
-player combusts spontaneously-
Reimu can already do this. That's pretty much entirely what PCB Extra/Phantasm was all about; Reimu broke the barrier to the netherworld at the end of stage 4 (iirc, just by touching it), and they have to pester Yukari to fix it.
Uh. No, Yukari weakened the barrier and Ghosts were escaping.
The ability to teleport.
lololololol.
Manipulation of sneezing.
That'd be a BITCH.
Every time I sneeze while playing danmaku I fuck up soon after

The ability to win any argument.
Persuasion/Negotiation Success could achieve that.
---
Now for some of mine? Les see -digs out ideas-
Ability to turn the tables
Ability to provoke ones anger
Ability to cause curses
Ability to transfer thoughts into someone else's mind
Shield Generation
Ability to stop mana/chi flow
Ability to create light
Ability to deny rest