I like games on PS2, but I don’t know which emulator can run good in OpenSuSE and how to install it. 
Can you help me ???
Thanks.
check out cedega.com for a game emulator and see if it supports ps2 i am not sure if they do but it is a great place to start.
As far as I remember cedega is a win32 PC emulator
a quick qoogle revealed this little ap:
PS2emu
The Emulator Zone - PS2emu
As this is most likely a source tarball you’ll need to compile it yourself.
This one is a better choice
PCSX2
PCSX2.net - News
And there is a prebuild rpm for OpseSUSE 11.2 in the emulators repo
http://download.opensuse.org/repositories/Emulators/openSUSE_11.2/i586/pcsx2-0.9.4svn20081125-1.1.i586.rpm
If U’re using 11.2 just add this repo
Index of /repositories/Emulators/openSUSE_11.2
and install pcsx2 via yast or zypper
hope this helps