Are you saying you've never heard of
Chrono Trigger? Wow... Have you been living in a cave all your life?
Good luck finding it, the chances seem very unlikely. Concidering it is a Super Nintendo Game... (I'd suggest using an emulator).
If you're talking about Chrono Cross? You might be able to find a copy at some video game store.. It is for Play Station though... so, I'd be easier to find than Chrono Trigger but maybe a little challenging. Either way, I recommend you look into 'em! They're dandy. Like Candy.
Fun.