just a ethernet cable to hook it up to your router if you do not have wireless internet available
Yes a wireless broadband connection or an ethernet cord
You can not Play online with anything but a PS3 if that is what you are using. It can be a different model of PS3 but not a PS1 or PS2
no
Yup, in order to play online you need internet.
You need an active PS+ subscription to play online on a PS4. You do not need PS+ to play online on a PS3 or a PSVita, but some titles have an 'online pass' - it comes with retail editions and is sold seperately on digital versions. You need this pass to play online.
You need the game in the PS3 to play it online, then it is an option available if you are also able to go online
you need to be connected to internet
No
Yes. You can't play online without active internet.
by tekken you mean tekken 5 dark resurrection for ps3?? you need a ps3 and have to download the game from the playstation store - you can play this game online
It need's full internet connection to play. Why do ya think it's called dc universe online
You have to create a acount online and then you can dl demos and play games online