I'd say my PB in Club Penguin Thin Ice! Had to pee halfway through which kinda sucked though
The two runs I'm most proud of are my PB in Mega Man X2 and my PB in Final Fantasy Tactics Advance.
Edit: Oh, also I had WR in Bloodstained: Curse of the Moon for like a day and that was pretty neat.
https://www.speedrun.com/arkhamcity/run/z01e9qoy
Fairly optimized category, this run beat the previous WR by 2.5 minutes (and is still the best run ever performed by that much), and is over 4 minutes ahead of 2nd place.
NHL 94 10 goals in one period run Sidorkowitz has to be a bum that game cause Ottawa can come at you hard and ruin you at even 9 goals
I got a sub 40 on Course 3 of gourmet race on Kirby Super Star Ultra in practice. Still have not gotten it in a run.
My 9:16:36 in WarioWare Mega Microgames. Would definitely improve if I could run it regularly though.
Compete with me in:
World Court Tennis
Mr. Golf
WarioWare Mega Microgames 100%
A few of my achievements are very close together right now, but currently I'm grinding to smash the record in Mercs Original Mode. I was close to a 13:33 last week and ultimately I'm targeting sub 13:30. Once I get that ultra run, it will be my supreme achievement. Super Hang-On 3'15"12 in Africa runs that very close though.
Sub 17 minutes in DKC3 "Water%" (now known as "Beat Krematoa") was one of the best times I've had. Problem was I didn't record it and had yuri hentai as my livesplit background. (I also hate hentai/porn now so it's even more disgusting to me lol)
I eventually beat it on January 1st 2017 @2am my time lol
My other achievement I'd consider "great achievement" is (accidentally) finding the first ever "Walk through Walls" glitch in Mario & Luigi: Dream Team (ended up being useless as better spots were found), and getting the first ever sub quarter day/6 hours run. WR is now sub 5 hours with only one new glitch (that saves about two minutes), so my run was bad, but still the first ever sub quarter day run :]
Also had the first ever sub 8 hours (new clips saved ~30 minutes, maybe more) and first ever sub 7 hours (same route as the sub 6 hour run), but both were without video evidence sadly. Sub 6 hours has video evidence, so that's cool.
And my best achievement as of yet: I broke my 3DS charger during a glitchless run by stepping onto it. This eventually lead to me breaking my 3DS. And that's why I don't run MLDT anymore.