Well here is a review from collectionDX:
mazinkaiser_black_wing
Unfortunatly his wings are fragile so you really got to be careful with them.

There are a few versions of it as well.

Top row: Mazinkaiser Japan Black Wing, Mazinkaiser New Red Wing and Mazinkaiser New Black Wing
Bottom row: Mazinkaiser Overseas version, Mazinkaiser Japan version and Mazinkaiser normal version


It looks like they fixed the wing problem with the newer version, but also want to mention that if you get the Overseas version he will be blue.