You know how to get 99 kills in a match?

You take Akali against a "Yordle Comp Stomp". They purposefully waited until 99 and surrendered before Akali could get kill #100.

I hit full build at level 14.

http://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/1862763606/218533396?tab=overview