Zardy Foolhardy proved so popular that there have been many mods featuring him made out there, but now you get the best of them all in one, with the game right here known as FNF Zardy Foolhardy Mod Pack, which has the following mods in it:
Zardy Foolhardy Reanimated!
Foolhardy RetroSpecter Remix
Zardy Foolhardy (BeatStreets Remix)
V.S. Zardy Foolhardy Duet Mod
Defeat Zardy in all his shapes and forms!
In either mod or mode you are playing, the way to win remains the same, by reaching the end of the songs, which you do by playing all the notes at the right time in their charts.
This means that when arrow symbols above BF match one another, you will press the identical keys from the keyboard, but missing too many times in a row leads to you losing. Enjoy!