ZeGame by Jesper van den Ende $2.99

ZeGame comes from Jesper van den Ende.  It's a 3-D maze puzzle app game.

The object is to get the green cube to the target, which is the light blue cube.

When you slide the green cube - in any direction - it must hit an obstacle. Same concept as Lunar Lockout, except the green cube is the only one that can travel.

The purple cubes are wormholes.  They require a lot of trial and error in order to determine which are the matching pairs.

Very cool: at any time, you can zoom in/out and rotate the perspective.

There are 140 levels. I've done 57.

After playing the Free version, I decided to buy the full one.
https://itunes.apple.com/us/app/zegame/id991958457?mt=8