Get ready for liftoff! After three years of work and spending millions of dollars, can Mark ensure his selfie-taking satellite has a successful launch?

Mark challenges his pet octopus Sashimi to a nine-part underwater obstacle course that tests her amazing intelligence and incredible dexterity.

One small step in space, one giant leap for taking a selfie. Mark preps a satellite to snap pics of the Earth photobombing the selfies sent by his fans.

After spending six months studying Jell-O, Mark sets out to fill an entire pool with it so he can see what it would be like to do a Jell-O belly flop.

Mark builds robots to beat the five most common arcade games, shares secret strategies to win tons of tickets and exposes some of the biggest scams.

It's five against one when Dude Perfect challenges Mark to an epic robot showdown that's full of surprises. The only rule is... there are no rules.

Let the games begin! From a high jump to a spinning balance beam, Mark's set up a series of backyard battles for squirrels competing for the Walnut Cup.

CrunchLabs product designers get 24 hours to build and race their own custom go-karts incorporating engineering know-how-and the element of surprise.

"Mark starts out with a plan to drop an egg from the world's tallest building but shifts gears to attempt the world's largest egg drop... from space.

Learn the science behind some of the coolest CrunchLabs creations, from a room-temperature ice rink to a rock, paper, scissors robot that can't lose.

In a scientific face-off, Mark goes head-to-head with NileRed and Kevin the Backyard Scientist to find out which is more destructive: acid or lava.

To stop the sneaky squirrels from raiding his bird feeder, Mark builds a challenging eight-part obstacle course in his backyard to try and slow them down.

Mark throws an epic birthday party for a deserving teen, complete with record-breaking devil's toothpaste experiment - the first of its kind.

Step right up and learn which carnival games are actually winnable and which ones aren't, courtesy of Mark... and a friend from the New York Mets.

Mark's robot Dom is really good at setting up dominos. But can he fill a warehouse with a mural made up od more than 100,000 of them in just 24 hours?

Mark has 30 minutes to find all nine product designers hidden inside the CrunchLabs warehouse - and they're allowed to fight back with blasters!