Where buy retro and play vs fight arcade game?

Hello world
I am in Tokyo since 5 days and will back to Paris soon and I am very disapointed. In Akihabara I see nothinq to sell too expansive or too bad...In arcade sega or taito station I dont see anybody for vs fighting like sf2x....Could you give some address for buy retro console and macross goofirs please.
THX

 

I would think your best bet would be to search on the internet for a local store that might have what you need, unless you know someone who’s from that area.