What's the greatest 2D game ever made in your view, and why?

[firebush03]

curl-6 said:

Lotta great calls here.

For me, it's Donkey Kong Country 2; the atmosphere, the music, the gameplay variety, it's just solid gold.

Y’know, I’ve heard so much praise thrown around about this game. I had a blast playing DKCReturns & Tropical Freeze, but only enjoyed DKCountry (OG). Is DKC2 really that much better? May have to give it a spin one day if so.