noun, noun or participle which takes 'suru', transitive verb
completing a game; 100% completion
Video game slang, abbreviation of 全クリア. Refers to finishing all stages, levels, or content in a game. Often used as a noun or with する.
このゲーム、やっと全クリした！
I finally completed this game 100%!
全クリまであと少しだ。
I'm almost at full completion.