(Please post comments, photos or even a fully comprehensive review - these are just some brief details to start you off)

Overlord with Giga & Mega
Series - Legends (Japan)
Sub-line -
Size/class - "Leader"
New/remould/redeco - Minor redeco of Hasbro Overlord, with two "Titanmaster" heads
Wave - n/a
Released here - Not here (out in Japan JAN 27th)
Approximate Retail Price - About 8500yen
Approximate Size - about 30cm
Allegiance - Decepticon
Alt-mode - Fighter Jet + Tank, Base
Main Features/Gimmicks - Headmaster
Main Colours - Black, blue, white, purple
Main Accessories - Gun, shield/nosecone, 2x heads.