Ninja Challenge fans will recognize Colin - he's been to Japan and knows the course well. You must decide if he gets another chance to complete the course.

Bryan touts his endurance, strength and his job at a financial company. He leaps, climbs and jumps while wearing a three-piece suit. Style points!

Last year's contestant Ruselis P (aka Blackie Chan) is back, climbing ropes, karate choppin' fools and otherwise proving himself a living deadly weapon. Dude jumps a car.

Ryan says earning a spot on Ninja Warrior is his lifelong dream. His high energy, strength and speed set him apart. Plus, he calls out Octopus Man! Fight!

Brian is a parkour disciple who's been to Midoriyama before, so he knows the course. He wants to go back, and this time, it's personal.

Jazon K says he "isn't afraid of heights, big jumps climbs or something crazy."

King is the real deal: Strong, fast and determined. Check out his moves.

Lorin B has a sense of humor and the moves to back it up... will his second try at G4's American Ninja Challenge take him all the way? You decide.

Luci is a stuntwoman, gymnast and all around badass, plus she has her own pirate ship! Luci's like a one-woman action movie--check it out!

Could Mark's soft-spoken gymnast style conquer Ninja Warrior? Only you can decide!