Yeah, I changed the gravity from default to -30.
Ok, about the arm dms.I changed a couple joints every couple frames from about 5 frames before. 2 frames before my hand made contact with ukes pec, I lowered my left shoulder that was holding his arm and then i contracted my wrist a frame later. The hit on the pecs dmd the shoulder and pecs, while the pull in the other direction got the wrist and elbow.
I had wips where i got the pec and shoulder only before I lowered my shoulder and stuff. I also had other ones where I didn't dm the pec, but I got both elbow and wrist.
It wasn't a bruise glitch though, I did it all in one sitting, and I wasn't slacking. I can probably recreate sometime if you want :v or I could share screens with you on Skype or something
It was also partially luck, I had the hardest time getting pec and shoulder in 1 frame. Small movements that are barely noticeable are what did it. I think I changed on of my ankle states and extended my abs for like 2 frames.