One of the more frustrating runners I've played
The girl seems to refuse to take jump commands, opting instead to trip on every ledge and hit half the spikes I tell her to jump over. This is not an issue of timing. I know when to push the button. She doesn't know when to execute the command. Must be a feminist.
Also, the Crystal Clear achievement seems broken, unless you have to get PAST the crystal level, which is silly since it's stupidly difficult.
Would be a great game if not for this and all the other issues outlined by PortalReviewerPerson. The game is just poorly designed.