Buffalo Bills wide receiver Mack Hollins has been likened to an untamed beast. Enter the Animal. Hollins walked into Arrowhead Stadium dressed head to almost toe - Hollins walks barefoot whenever possible - as Animal from The Muppets for the Bills AFC Championship game against the Kansas City Chiefs.

Under the Animal mask, it was Bills receiver Mack Hollins, who has made a habit of turning his walk into the stadium into an event. Before last week’s game against the Baltimore Ravens, Hollins decided to bring out some Miami vibes despite frigid temperatures in Buffalo.

This season, he has embodied a variety of characters for pregame walk-ins such as Fred Flintstone, a mad scientist, and even a beach-bum outfit in single-digit temperatures. Hollins has had one reception and two targets in each playoff game for the Bills during their postseason run.

Hollins has been in the league 2017. He didn't play in 2018, but returned a year later and has served as a depth receiver for the last six seasons. For the Bills, he's proven to be a reliable option for quarterback Josh Allen in redzone situations.

Mack Hollins: Mack Hollins had his best game as a member of the Bills. The veteran scored a touchdown late in the first half against the Chiefs’ top cornerback and set up a 1st and goal late in the game on a 32-yard reception. He finished with three catches for 73 yards and one score.

A Buffalo Bills wide receiver showed up in another ridiculous outfit for Sunday's AFC title game against the Kansas City Chiefs.

Bills wide receiver Mack Hollins is an interesting character. He has proven to be a savvy free agent signing by Buffalo Bills GM Brandon Beane

Week 13, following a snowstorm in Western New York, he showed up dressed as a mad scientist, and when the Bills faced the Broncos in the wild-card round he came to Highmark Stadium dressed as Fred Flintstone with a Buffalo hat with horns on his head.

Mack Hollins does more than dress cool. He can make great catches, too. Josh Allen looked for the wideout late in the second quarter and Hollins was in the end zone. He made the catch for a 34-yard touchdown play that brought the Bills within 21-16 with 23 seconds left before halftime.

Buffalo Bills wide receiver Mack Hollins is known for walking into stadiums barefoot, but he took it to the max with his pre-game Muppets-inspired fit on Sunday.

The internet went crazy when Mack Hollins wore the mask at the AFC Championship. The Buffalo Bills wide receiver channeled the Muppet icon's crazy, drum-smashing enthusiasm with h