Phineas and Ferb - Missing My Nemesis

'Without your schemes, my life, it seems it's empty
I spent all my time keeping you from doing wrong
You were my only nemesis
I foiled your plans but still I miss
The moments when we didn't get along

So search your heart, please, Dr. D
And I am sure that you will see
That you were always meant to be
My only life-long enemy...

But now, you're doing battle
With a panda from Seattle
I miss the moments when we didn't get along

Ooooooo...'