This is cute and simple! Nudge the Tempus companions into the pen... easy? Not exactly -- I like how each companion had a different mechanic that flavored up the levels.
Phantom, the little rascal, was probably my favorite... despite trying to eat my cursor. The inertial lag to mouse input wasn't very fun to fight, but it did put up a fight. The music will probably haunt me at night, having listened to it for a bit too long. The lack of text in the UI made for weird-feeling UX that could have been improved with guiding text... buttons and drawings are useful, to a point!
A solid effort? I think so! It's not very replayable, though. It would be fun to see more variety in levels (and music, *please*) both in layouts and in themes, and improving the UI to make the sanctuary somewhere you can navigate to and view your unlockables (perhaps a grid, with unknowns for the locked items).