The Z-Cube Maze cube is a 3x3x3 speedcube with arrows on the pieces that create a maze going around the cube. Ultimately the only extra challenge required to solve it is to rotate the centres, just the same as with any picture cube. Nonetheless, it is still a cheap way of getting a slightly different challenge.
Other Posts

Spring makes it £18 cheaper? (MoYu Super WeiLong V2 Spring Unboxing)
It can sometimes be strange unboxing a cube that feels pretty much exactly the...

Students from Purdue ECE shatter world record for cube-solving robot
A group of students at Purdue ECE's engineering department have shattered the world record for the fastest time...

10 more cubing terms every cuber should known (#2)
How can you call yourself a cuber if you don't know these cubing terms? Provided people watch this...