Calling all gamers! Markiplier stars in great moments in a gaming history classic. ScottDW brings a fruit slicing video game to life, set to dubstep.

From real life twin sisters, The Merrell Twins, to Parker and his videogame character frenemy, this episode highlights all types of duos in an impressive GOAT off.

Cats and dominoes are the dynamic duo you did not see coming. From dance battles to larger than life domino runs to cats hitting bells this is a must watch match up!

Mark Rober creates a squirrel-proof bird feeder right in his own backyard.

With over 200 million views, RocketJump's The Floor Is Lava video turns a classic game into a virtual reality.

David goes to the dentist and puppies try to sing and talk like humans; some babies find it hilarious when other babies are covered head to toe in peanut butter.

Unspeakable creates their very own indoor playground by filling their entire house with plastic balls; Corridor Digital and How Ridiculous battle it out in a "GOAT" off.

Mark Rober dives into the ocean to test whether sharks are more attracted to human or fish blood.

Inventors in this episode have created incredible contraptions. You'll see cookie dunking machines, custom built scissor lamps and a bike made solely out of shoes.

An episode filled with the most epic trick shots. We’ve got everything from flying discs, ping pong balls, basketballs and even spinning darts that hit the bullseye.

Mark Rober throws shame to Elephant’s Toothpaste with his newly formed Devil’s Toothpaste recipe. With the help of an engineer, they attempt to break an explosion record.

From a selfie taking dog photo booth to a hands-free lunch feeding machine, inventions of all kind take over this episode and will leave you wondering how is that even possible?

From car chases to traveling the world in 30 seconds, this episode has moves that are so fast you may blink and miss it. Dancing badgers also take over in an awesome animation.