Hacking Local multiplayer between two different region 3DS

[Gaulwa]

Hi, I cannot seem to be able to play local multiplayer between a EU 3DS, and a US 3DS+ Gateway, even though I run the EU rom on the US 3DS to be compatible with the EU 3DS.
Every time I try, I get 'Connection Error'.

here is my setup:

1 USA 3DS to play US games + Gateway
1 EU 3DS (latest version for online multiplayer)

Due to some circumstances, I own two EU copies of Mario Tennis and Monster Hunter 3. Of course, they won't work on my US due to region lock, but I was hoping to use gateway in some way either to remove region lock, or run the EU rom on my US 3DS to play locally.

I heard gateway was working for offline multiplayer yet it does not seem to work for me. Does it only work when both rom and 3DS are of the same region?

 

[gamesquest1]

some games allow cross region multiplayer iirc, but the rom your using has to match the region of the console, see what games support cross region multiplayer here
http://www.gaijingamers.com/showthread.php?t=6417

moster hunter 3 is a no apparently, but try using the US rom of mario tennis, it may work, that site says mario golf does.....but i suppose it depends on the game

 

[Gaulwa]

Thanks for the link.
So I do need to have the same region between my game and my console. Too bad, I guess I am limited to games allowing cross region local multiplayer.

better than nothing I suppose... this is the last time I buy region locked consoles. Too many people around me have either JP/US/EU this is a nightmare.