This is the song from the episode "Doof Dynasty".
Here's a link to an HD video of the song: link

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Oh yeah!
In other circumstances tu might fail
'Cause I know tu don't have a castor tail
You're not a platypus
But I'm gonna see tu sweat...
All: Milk!

We're gonna see how much tu can take
I'm gonna work tu through your union break
tu squeeze a silkworm, what'cha think you're gonna get?
All: Silk!

But I know a way we can make tu a warrior
Even though now you're a wuss
It's the Way of the Platypus!

But that's just the general information. Here's some of the specific things tu can look adelante, hacia adelante to in your workout...

Your gonna run up a ramp with two buckets of water
oscilación over muck for some reason
At some point you'll drop to your knees when it's rainin'
And look up into the sky...

You'll stand on a post with your arms out
Hey, these flores are way out of season
You'll fly to a swamp planet, meet a little green man
and mover big heavy things with your mind...

But I know a way, we can make tu a warrior
Even though now you're a wuss
It's the Way of the Platypus!

It's the Way of the Platypus!