Tokoro Tennosuke/Jelly Jiggler in Bobobo Bo Bo Bobo is an obvious parody of Sunshine as a square-bodied former villain with a "Magnum" attack that involves an ally punching pieces of him out of his body as projectiles.
Mako from Kill la Kill performs the Kinniku Buster on her little brother in the first episode.
Killer Bee and the Raikage in Naruto use a double lariat not unlike the Cross Bomber as a Combination Attack.
Time Stop Hero: In Chapter 34, Kuzuno Sekai uses the Kinniku Buster on Leafa Colby.
The character Brocken from World Heroes was largely inspired by Brocken Jr., even down to having the same name.
King from the Tekken series uses a Kinniku Buster-esque move as part of his moveset. In King's Tekken 5 ending, he and Craig Marduk perform a Muscle Docking.
Jack Cayman will preform a Kinniku Buster as his anti air grab in MadWorld, with the exception that he lands on his feet instead of his rear.
In Super Street Fighter IV, the Ultra Combos of the character El Fuerte are definitely Kinnikuman references. One of them, the Ultra Spark, is a modified Incomplete Muscle Spark, and the Flying Giga Buster resembles Big Body's Maple Leaf Clutch.
Even Zangief gets in on the action with his second Ultra, Siberian Blizzard. It's a spinning Kinniku Driver.
Clark Still from The King of Fighters. Depending on the game, his Ultra Argentine Back Breaker will end with a "Clark Spark" or a "Clark Special," mimicking the Muscle Spark and the Robin Special, respectively.
There's also Heidern, a German fighter in a military uniform who bears some resemblance to Brocken Jr. His Moon Slasher special even resembles the Red Rain of Berlin.