My Life in Gaming,has a preview and it looks good plus M2 did tweak some games.Still it's a shame japan get's musha,snow brothers and slap fight while the u.s doesn't.Still it's great that the u.s get's monster world iv such a gem in the wonderboy series.

https://www.youtube.com/watch?v=kbr5eP6KO_o

My only other complaint jpn get's a six button controller pack in while the u.s doesn't.Though,retrobit six button genesis usb controller is compatible with the genesis mini.