Two bartenders, who are best friends, must complete 10 stunts, including the Baby Rattle Challenge, to win $1 million.

A beauty queen and her mother compete for $1 million.

An adventurous woman from California and a man from Colorado compete for $1 million.

Two contestants from Kansas work together in hope of winning $1 million.

Two contestants from Kansas work together in hope of winning $1 million.

Two women take part in the competition for the top prize.

A woman and her daughter compete against a man and his son in hope of winning $1 million.

Part 1 of 2. Mountain climber Aron Ralston, the inspiration for the movie "127 Hours," plays the games. Included: the Wheel of a Deal challenge, which involves separating 20 cards into five identical groups.

Conclusion. Aron Ralston continues to play the games in hopes of winning $1 million for charity.

A pair of strangers team up to play the games, including the Dizzy Mummy challenge.

Two couples play the games, starting with the Brew Ha Ha challenge.

NBA players Derek Fisher and Shannon Brown play the games for charity. The pair start with the Nice Build challenge, which requires them to build a three-level pyramid from paper reams.

A father-daughter duo play the games, starting with the Mad Dog challenge.

An Oregon woman and Texas man play the games, including the Tilt-A-Cup challenge. Later, a married couple compete for the grand prize and play the Roll With It game.

A married pair continue playing the games, including the Back Flip challenge. Later, an Arizona man and a California woman play a game requiring them to blow up balloons and use the air inside to blow cups off a table.

Two pairs play the games, including the Spare Me and Sticky Balls challenges.

A sheriff and single mom play the games, including the Tilt A Cup challenge.

Mother-daughter duos play the games, starting with the Temper Tantrum challenge.

Two guys play the games, including the This Blows challenge. Later, a new round kicks off with the Floatacious challenge.

A couple and their four daughters play the games, including the Temper Tantrum challenge.

A teacher and a youth-group leader play the games, including the Candelier challenge.

A Detroit woman plays the games, starting with the Floatacious challenge.

A Detroit woman continues playing and takes on the On the Hook challenge.

A pair of brothers from North Carolina play the games, including the Hoop De Loop challenge.

"Jackass" stars Steve-O and Ryan Dunn play the games for charity. Included: the Mad Dog challenge, which requires them to empty breath-mint boxes attached to a ruler by shaking their heads.

A pair of friends play the games, starting with the Nice Build challenge. Later, two sets of sisters go head-to-head and take on the Stack Attack challenge.

Two pairs of sisters play the games, including one in which they must balance six dice on a stick held in their mouths.

A California husband and wife vie for the prize; a woman from Arizona and a man from Massachusetts compete.

Strangers play the games, including the Nutstacker challenge. Later, siblings play for the prize and take on the How's It Hangin challenge.

A Marine and an Army wife play the games, starting with the Spare Me challenge. Later, a California woman and an Indiana woman take on the Temper Tantrum challenge.

A Tucson woman continues playing the games, starting with the Keep the Change challenge. Then, a Los Angeles pair compete for the prize and take on the Tilt-a-Cup challenge.

A California woman and an Indiana woman continue playing the games, including the Play It by Ear challenge. Later, two new contestants from California play for the prize and start with the Hoop De Loop challenge.

Florida and New York women play the games, including the Floatacious challenge. Later, a new game begins with two contestants from California, who take on the Temper Tantrum challenge.

A New Hampshire mother-daughter duo play the games, including the Human Burrito challenge.

A teacher and construction worker face off in a best-of-three competition, which includes the Stack Attack challenge. Later, a Tucson woman starts a new game and takes on the Chocolate Unicorn challenge.