Are you talking about the Mini Battle Sets? It is indeed KG'64. Pics from the box give it away already but u can also look at his heads.
It is awesome to have a Rose Biollante & G'89. Just wish Bandai would make a 6" or 8" version. The GMK set is pretty neat too. GMK goji is very accurate to the 8in version. The G'92 & Battra r cool too. And its funny to have a set w/ Final Goji Vs. Zilla. Now the entire GFW Mini Battle Series is complete.