I nearly rage quit over final fantasy X for their sigils, but not because the Sigils are hard to get. They are hard to obtain mind you but this is basically what happened.
I was doing the chocobo races to try and get Tidus' ultimate weapon activated, and after four hours my best time was still 2.3 seconds. So I said fuck it, and decided to try a different character's sigil.
So I went to the thunder plains, and got 187 jumps. 187, just 13 away from the amount I actually needed. Then boom, I didn't press at the right time, and I lost the count.
So finally I said fuck it, and just decided to do something a little easier and do some monster catching in the game. Well I got five of all monsters and unlocked one of the original creations that gives you 60 dark matter for unlocking. Wanting to see what Dark Matter does, I scrolled through and saw "Break Weapon Damage Limit," the ONE FUCKING FEATURE ANYONE EVER GETS FOR ULTIMATE WEAPONS!
I nearly threw my controller at my TV in a fit of rage.
After that, I simply calmed down, and went to an online site that details the 4 specific abilities of each ultimate weapon and discovered that I could just easily frigging build them if I wanted, and I did.
So yeah, in case anyone still plays FFX and is frustrated beyond belief trying to get the sigils, don't bother. Dark Matter is easier to obtain. Just beat the ever loving shit out of Catastrophe a bunch of times with Anima or something.