Quotes / 100% Completion

"...But these issues certainly weren't enough to stop me from completing the game, or at least as getting far as the end credits. That's by no means the actual end, but striving for 100% completion is for unemployed psychotics and Koreans."
Yahtzee on the subject in Super Mario Galaxy

"Well, now you'll never get that Energy Sphere! You'll have 119/120... Forever. As the years go by, you'll be driven to an obsessive-compulsive madness as you grasp with the fact that, long ago, in another time, you weren't able to collect the final doodad to see what minor award awaited you. And you, my friend, will weep. You will weep and remember this day."

"The greatest quest in life, is to see that 100% on your save file."

"i know your kind. [...] you'll keep going... not out of any desire for good or evil, but just because you think you can. and because you "can"... you "have to"."
Sans, Undertale, calling out the player on doing a No Mercy run.