In the episode "The Big Chill Out", when Donkey Kong and Diddy Kong are petered out over Bluster's suggestion to expand their Coconut Chill business beyond Kongo Bongo Island, Donkey Kong pulls out a trumpeta and the two sing "Over the Hill". Notably, for the entirety of the song, the visuals are in a sepia tone.
DIDDY:
So hard, too hard
This workin' life isn't for me
Can't ya see the road to success
Is nothin' but back-breakin' stress
Please get me out of this mess
'Cause this Coconut Chill is a bitter pill
The road to success is all uphill
Oh-ho, that's the truth
DK:
Now listen here, little buddy
Rome wasn't built in a day
If you look at the bigger picture
All of the obstacles will fade away
The Coconut Chill should give you a thrill
The road to success leads over the hill
DIDDY:
It's all uphill
DK:
Just over the hill
DIDDY:
Just over the hill?
DK:
Just over the hill
DIDDY:
It's over the hill! Ha-ha-ha! Yeah!