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

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.

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

It's not just the Ninja Kidz - it's the whole Ninja Fam! And Mark's challenging them all to a silly series of "Minute to Win It" style challenges.

From cereal and milk to spaghetti and meatballs: Things get messy when the CrunchLabs team cooks up new ways to make Mark's mealtimes more efficient.

Stolen packages? Not so fast. Mark builds the original "Glitter Bomb" trap to combat porch pirates-and really make them regret their life choices.

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.

"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.