can someone help me install mess or mame?

[Linux for blind general discussion]

Not sure how much it will help(from other respondants, it sounds like
both i386 and amd64 have Mame packages, making me think there might be
an issue with your sources.list or something else in your apt
configuration), but here's a how-to on multiarch in Debian:
https://wiki.debian.org/Multiarch/HOWTO

While experience tells me a 32-bit x86 Debian has no clue how to run
64-bit binaries, I believe there shouldn't be any issues running
32-bit applications under a 64-bit system.

-- 
Sincerely,

Jeffery Wright
President Emeritus, Nu Nu Chapter, Phi Theta Kappa.
Former Secretary, Student Government Association, College of the Albemarle.