@yfzdude said in MAME query re: picking characters on 4-player games? (TMNT, Simpsons etc):

Rampage also matters. (3 Players)
[I think the order was George/Lizzy/Ralph.]

They made sequels to Rampage. (After ten years) But they were basically the same gameplay with different characters.

https://en.wikipedia.org/wiki/Rampage_(1986_video_game)

@bomberb17 For RetroArch/libretro based emulators (lr-mame..), the Select key should function as a 'Coin Insert'. If you're other MAME emulators (advmame, mame4all), I think you need to open the MAME input menu (pressing TAB on a keyboard) and manually map the key/button you'd like.

perfect, thanks for the tip!

The gist of the Getting Started guide for Arcade is that users need to 1) pick your arcade emulator and then 2) you find the exact romsets designed for that emulator version

Your emulator is mame2003 and it will only work with a MAME 0.78 collection. If you have a MAME 0.78 romset collection you will not get CRC errors and the games will, generally, play.

The MAME 0.78 romset collection is very easy to find on the internet. No Dark Web required, just a search engine :)

I don't think so. Each arcade machine in MAME is emulated individually and effectively thinks it is a separate cabinet.

Maybe if you can explain how you are using it and for what purpose, someone may be able to give a little more help.