Yeah. There's a lot you can do in FFXII, I just beat the game, but I know I haven't even done half of the things in that game.
In case you don't know yet, Espers in this game are like Aeons in FFX, but on steroids. When you summon an Esper, it fights along side the summoner. Sadly, they become kind of useless about halfway through the game.
But I still love my Zeromus!
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