psych engine

psych engine is a modder that you can use to make mods for thr fnf music game fnf is a music games of weeks and also the mechanics is have left right up down arrows that up in the screen and the same arrows directions of its own goes up to it and the players must click the arrow when it hits the arrows on top making its character do a pose like right pose and left pose and up down poses like alot of sprites for animations so this is psych engine where you could Make a mod for it