In a word?
All right, two words.
I know that, judging by the reaction that the choice has gotten in the forums, Chrono Trigger isn't exactly the most popular choice for the new Endurance Run. The past Endurance Runs were of recent games played by teams that went blindly forward with no prior exposure to the games. The choice of Chrono Trigger goes against those very concepts; the game is a well-known classic of its genre, and the team going in has already experienced it, though a lot of time has passed since then. Also, because of its age, Chrono Trigger lacks some of the qualities, such as voice acting, that lent the Persona 4 and Deadly Premonition Endurance Runs part of their charm.
That all being said, I have no problem with the choice of game. Having played the game on the SNES and again on the DS, I know the ins and outs of Chrono Trigger well enough. The story holds no surprises for me. But the Persona 4 Endurance Run was a similar experience; I had already beaten the game and attained the true ending well before Jeff and Vinny had sat down to record the first episode. When I watch the Chrono Trigger Endurance Run, I'll watch it because I want to see Ryan and Patrick's reaction to it. Yes, they're already both at least somewhat familiar with the game; it won't be the same sense of bizarre discovery as was the case in the previous ERs. But if each one was the exact same, take a recent, niche game and experience the oddities within, wouldn't that grow old in its own way?
And speaking of old, why should a game's age work against its favor? The Endurance Runs are not unlike the Let's Plays one could easily find on Youtube. I know of at least one person that's actually done a Let's Play of Chrono Trigger. And you know what? What I saw of it was actually pretty entertaining. It's all about how the participants react to the scenes on screen and the flow of the game. Chrono Trigger might not have voice acting, or Funky Student, or peculiarly-named murder victims, but it has its own charms. And in this case, the bonus quirks of the SNES-era Ted Woolsey translation. You know. The "spoony bard" guy.
If you don't understand that reference, I pity you.
But I'm getting off track here. The point is, despite its age, and despite the familiarity, Chrono Trigger has a lot to offer as an Endurance Run. For those of us that have played it and have our own particular fondnesses for it, we get to see the reactions of two guys that otherwise probably wouldn't have much reason to talk about the game in the context of Giant Bomb. For those of you that haven't played it for one reason or another, well, it gives you a way to experience it in the same way that those unfamiliar with Persona 4 or Deadly Premonition were introduced.
It's possible that the Endurance Run won't be very interesting, and Ryan and Patrick might not make the ideal pairing for this endeavor. But all the same, I'm going to give it a shot, because god damn it I love that game, and I am happy to see Giant Bomb give it this treatment. It will be an adventure.