I'm guessing beta testers for Ant and Fang and by "you" i think he refers to the player. I mean we take our time to play his games and everything.
Then again, Ant and Fang might be people who deliver pizza as Ghaleon suggests but i think its more plausible for them to either A: Be his parents (I have a theory about ZUN living in his parents basement). B: Be the ones who provides him with beer or C: The bodyguards that protects ZUN from the poor losers who gets violent. (I don't know if such exists but i guess its possible)