MegaminX

A dodecahedron-shaped cube with 12 faces and 62 pieces
This is the star of any puzzle collection.
A difficult and challenging cube (more so than the regular cube, of course)

The cube has 12 sides that can be rotated in any direction to create 12 identical colors at the same time.
One on each side of the cube

The record for its completion is 27.81 seconds.