Emulation Station Single Emulator?

[mancity]

Hi guys,

I want Emulation Station to simply run MAME.

I have removed all other emulators, however Emulation Station still requires you to choose the emulator before it starts (i.e the menu where you choose MAME/ NES/ Apple II etc), rather than go straight in. Is this something I can change?

Also, any idea how I change the aspect ratio in MAME to 4:3?


Thanks

[mancity]

If it helps at all, all I want is for my Pi to boot directly to MAME.

If anyone could help that would be greatly appreciated