Help Phineas and Ferb to break Dr Doofenshmirtz's cunning plans in the alternate dimension! This time they will not act alone, C...

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Help Phineas and Ferb to break Dr Doofenshmirtz's cunning plans in the alternate dimension! This time they will not act alone, C...
Explore story. Click and select....
Use shotgun. Eliminate enemies....
Edit screen. Complete levels....
Enjoy transformation. Use tools....
Upgrade attacks. Clear stages....