1. Have a friend start up his save file
2. Everyone else go to "online".
3. Select the server your buddy is on. Make sure its aquadasoft server you choose.
4. Type in his nickname in the "co-op request" box and click the arrow.
5. Wait for your friend to respond and oh...... RAG...uh..I.. mean FUN! Yeah have fun.
oh and to accept a request.. just press Y when you see a request
Troubleshooting:
Q: I'm not getting any requests!
A: Make sure you press F12 to connect to a server.
Q: My friend isn't getting my requests.
A: Make sure you've typed their name in correctly.
I hope this helps ~ Kev