FNF: Fireboy and Watergirl

In FNF: Fireboy and Watergirl, the classic Fire and Water duo trades temples and traps for a mic battle with Boyfriend. The crossover turns their usual adventure vibe into a music showdown where beats matter more than puzzle switches.

The mod offers two ways to play. Story mode links the songs into two full weeks of battles against Fireboy and Watergirl. Win the tracks in the first week to unlock the second, then clear every song in order to finish the story. Free-play mode works differently and lets players jump straight into any unlocked track without following the week order.

How to play?

Watch the floating arrows on the screen and press the matching keys at the exact moment they reach the top markers. Hit chains of notes cleanly to keep Boyfriend’s side of the health bar from shrinking. Miss too many arrows in a row and the bar shifts toward the Fireboy and Watergirl side, which ends the round early.

Try different songs in free-play to get used to fast sections before going back to story mode. This Friday Night Funkin mod rewards steady timing more than button mashing, so keep a regular rhythm and focus on the arrow patterns to carry Boyfriend through the full duet.