I have been thinking about it, and even for me, I have to admit that DK3 has been in a crazy amount of tournaments.
It's been in back to back BOTA's
It's been in a brofest
It's been in an IGBY
It's been in a Grinkfest
It was involved in a special California Extreme tournament involving Donkey Kong, DKJr, and DK3
And today I found out it's been in an AussieArcade tournament this month.
So yeah, it's really cool to see a ton of people get to experience the awesomeness of DK3.