FNF: Corrosion V2 (Phineas and Ferb) Home FNF: Corrosion V2 (Phineas and Ferb) 0.0 / 5 ( 0 votes ) Your Rating? Discover FNF: Corrosion V2 (Phineas and Ferb) – Play Free Now on GameHard! FNF: Corrosion V2 (Phineas and Ferb) is a creepypasta mod for Friday Night Funkin' featuring Phineas Flynn in a music fight against a glitched clone of Isabella Garcia-Shapiro. Enjoy playing this game here at RegionGame.com! Categories in which FNF: Corrosion V2 (Phineas and Ferb) is included: Multiplayer Hard