Not all poopies are brown
“Nu am puwpuw, am fuchsia!”
“Unastandabwe, hab a nice bwight time!”
I think a Simpsons game from my childhood had that exact plot. I recall Bart using bottle rockets to shoot at purple lights and animals.
Bart vs The Space Mutants.
And he had glasses that revealed the aliens in a similar fashion to They Live.
Soundz ‘ike dey nedz dat WAAAGH! Enagy, cuz purp’l iz sneeky