First of all: go watch the video. It'll take then less than two minutes. This page will still be here when you get back.
Now that you have gone mad from the revelation, have fun adding as many tropes as possible to this page.
Ultimate Muscle Roller Legend is a 3D animation on Nico Nico Douga, where it's one of many Bara Genre videos from the "Gachimuchi Pants Wrestling" community, which primarily feature silly mashups of gay porn clips, especially those featuring pornstar Billy Herrington. It was uploaded to YouTube a day after NicoNico, and went viral after it was posted on the /r/WTF subreddit, introducing many international viewers to the wacky genre. If you still want a(n attempt at a) description to confirm what you saw is real: Two gay pornstars lived in the forest, until one day Kagamine Rin started paving over it. Billy and his motorcyle-man partner give chase.
No relation to the anime Ultimate Muscle.
This video contains examples of:
- Bald of Evil: Rin, the antagonist, is revealed to be wearing a wig, which she loses halfway through the video.
- Chekhov's Gag: A nude photo of Billy pops up in the beginning with his crotch being blocked by a baby face. We see later that he actually does have a baby face there, capable of firing lasers.
- The Face of the Sun: When our heroes roll into the sunset, the sun is shown to have the same baby face that is used for its Gag Censor.
- Gag Censor: Gachimuchi videos often edit a baby face over depictions of genitals, since it's a meme among the community, and this video is no exception. It's even plot-relevant!
- Hairstyle Malfunction: When Rin transforms her road roller mecha and it leaps over the railing, her wig falls off.
- Improvised Parachute: After being forced from her vehicle, Rin uses her neck scarf as a parachute to land safely.
- Macho Camp: Billy and his partner, Kazuya Kiyoshi (real name: Danny Resko, aka Danny Lee/Dallas), are quite muscular, wear nothing but loincloths, and are very gay.
- Made of Iron: Slam into a guard-rail face-first at 50+ miles an hour? No problem for Billy Herrington or Kazuya, who are hardly phased and re-form into a segway formation mid-flight.
- Multi-Track Drifting: Rin casually drifts around turns effortlessly in a road roller. Possibly justified by a later revelation that it's actually a Transforming Mecha.
- Phallic Weapon: When Billy takes off his speedo, the Gag Censor baby face is revealed to really be something he actually has on his crotch that can fire a Slow Laser at Rin.
- Prehensile Hair: Rin's wig appears to be sentient, seeing as it tries to hop away before Billy runs it over, or possibly get in his way on purpose to make him and Kazuya slip.
- Riding into the Sunset: After finally defeating Rin with a Rolling Attack, the heroes continue rolling into the sunset.
- Rolling Attack: When Rin tries to make her escape, Billy and Kazuya each grab the other's legs to form a giant wheel that they use to run her over and defeat her once and for all.
- Slow Laser: Billy fires a slower-than-light laser beam from the baby face on his crotch.
- Transforming Mecha: When Billy starts to catch up to Rin, the latter presses a button that transforms her road roller into a bipedal robot, allowing her to vault over a railing and land on the road below.
- Tricked-Out Shoes: When Rin's road roller mecha is destroyed, she tries to make her escape on foot, and her shoes let her slide along the ground almost as fast as her vehicle.
