Koopa Troopa used.

KT2 was bad, RR was awful (squished by Thwomp, fell off, started in 4th, hit thwomp, and more). Overall decent run. Vanilla Lake 2 and Donut Plains 3 were pretty solid. GV1 was also bad. And DP1 was grimy.

I doubt I could improve much, I might try one more time to sub 40 down the road, but I think I'm really done for a while. Will only try again casually if I get the urge to.