Default [Q] How to play a Local Multiplayer game?

Hello guys!

Me and my friend both got CoD:Zombies, Counter Strike Portable and some other games with Local Multiplayer.

Then he creates a wifi hotspot in his own phone, i connect to him, and we try to play with each other.
In minecraft, i connect to the server, and we see each other, but the connection crash some seconds later. In Counter Strike and CoD Zombies i don't see his server.

It's even possible to play local multi this way? Tthere's another option, called Bluetooth Roaming, but i didn't tried it.
If not, there's any app that can do it?