Game Phineas and Ferb Hidden Letters online

The brothers Phineas and Ferb quarrel with her older sister Candice, the platypus Perry, leads a double life, concealing the fact that a secret agent, but when trouble comes, and there is a real threat, all gathered in one team and are ready to defend themselves. See how they are prepared to repel the attacks of the army of robots mad doctor fufel and help them. Help is to find uppercase English letters and removing their click of a mouse.