Molecular Immobilization
This power primarily gives Piper the ability to 'freeze' objects and beings in motion by slowing down their molecular movement rate to such a point where they appear not to move.
Molecular Combustion
This power works by speeding up the molecules of the desired object to the point where they separate with an explosive action.
Control
Both powers are reliant on both her hands (to do the blasting/freezing motion) and her eyes (because she needs to see what she is actually freezing/blowing up). Since her powers are based off of emotions, it is believed that Piper's combustion powers came around when she started getting more aggressive and confident.
Future Powers
Possibly in the future, Piper might gain the powers of Molecular Inhibition. With these power she is able to freeze someone's or something's molecules to the degree that they appear to be frozen in ice. She might also have Molecular Manipulation since her powers are based on a molecular level. ((She will gradually gain these abilities in both games in order to promote character development.))