If you ever decide to start playing Chrono Cross I would suggest to be a little patient and play Chrono Trigger. It's Chrono Cross' prequel and there are some story elements in Cross that connects to Trigger. Chrono Trigger has been released for Snes, PSX and of course you can find and play it with an emulator and Cross only for PSX.
Chrono Cross though has a stranger, yet new and refreshing battle system which you have to learn well if you want to progress easily through the game.
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