That's the thing! I can't beat 4/20 so I tried playing once against Foxy, then against Freddy, and lastly Bonnie & Chica all on lvl 20 but not in 4/20. And I got the main plushies anyways :o
That's why I only have 5% completion left; I need to beat 4/20 so I achieve 100% and get the last animation.