A great score for sure, possibly among the top hardest to beat scores, but not the absolute pinnacle. Adding another to the list, and echoing what Wes said that the info is out there for DK, whereas it isn't for other titles, I present Super Street Fighter 2 Turbo.
Yes, that's my #2 place holding, and that is an accomplishment in a list of many #1's on street fighter titles for me. Enthusiasts all agree that the AI on this title is ridiculous. I have been on pace for 1.3M on the best of best days, I think once. Beating the current world record, by my best calculation, would require two perfect rounds against every computer opponent, winning those perfect rounds with a super move that provides significant points (20-40k range, per super victory), and would require dumping one round for points per opponent AND pulling off a super move for adequate points (10 - 20k) during that round but not killing with it.
The MAME world record is 1.246M, for comparison.
Maybe Jason Wilson knows a secret that the rest of us don't.
Super Street Fighter II Turbo [Points [Tournament Settings]]
1 1,865,000 100.00% Jason Wilson 1999-07-31 Referee
2 1,070,100 57.38% Chris Gleed 2016-11-18 TGSAP
3 1,069,809 57.36% Dan Rodriguez 1997-12-10 Referee
4 838,500 44.96% David Spence 2000-06-24 Referee
5 729,301 39.10% Jesse Howard 2000-06-24 Referee
6 679,500 36.43% Chris Wong 2000-06-24 Referee
7 445,101 23.87% Jesse Cardenas 2000-06-24 Referee
8 283,800 15.22% Mike Watson 2000-06-24 Referee
9 236,200 12.66% Wes Truelson 2000-06-24 Referee
10 140,100 7.51% Jason Gonzalez 2000-06-24 Referee
11 125,300 6.72% Paul Deaville 2000-06-24 Referee
12 112,000 6.01% Seth Killian 2000-06-24 Referee
13 19,400 1.04% Nick Popovich 2000-06-24 Referee