Originally Posted by Konnaha_yellow_flash
The size of the Kyuubi is more based on the size of the panel and how close it is to the user or whoever, thus Kish draws it larger when it is in the back ground and much much smaller when it is close to naruto...
Either way, size is just not a good way to determine it's power level at this point IMO...
Assuming if Yin chakra is as strong as Yang chakra then both Kurama's are equal strength. And it didnt seem like this is Minato's first time meeting Kurama inside his head. Kurama seemed to be giving Minato confidence instead of trying to take over him