Originally Posted by manicx
I wouldn't classify Megadrive as a shemups console. Megardive was the favourite console for coin op conversions. It had everything, platforms, beat em ups, shoot em ups etc. And don't forget that Sega had Sonic as a mascot, a character appearing in platform games. If you want to speak about the absolute console for shoot em ups, then this is the Saturn.
The definitive console for SCHUMPs is the PC Engine / Duo.