[quote name='jer7583']As for arcade games, NOBODY in the world has ever gotten Smash TV's "finish the game without continuing" achievement, either because nobody's done it, or they are liars and when they did do it, the achievement didn't go through.
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The achievement is glitched. You can meet the requirements easily using the two player glitch, but it just won't unlock the Game Master one (The other level ones unlock fine).
FFXI's achievements are time consuming, therefore its easier to just jump to another rendition of Sports Game 2KX. There is a way, but good luck trying to pull it off. Since you can use a PC/PS2 account, just find someone who has leveled each job to 75 (or the other requirements). Use their account and talk to the guy in the tavern to unlock them.
But, how many folks are going to give you free access to their account they've spent years on? Not many.
Therefore, I deem it the most difficult. Ever.