They had to take a step forward everytime they answered "yes" to a question with the first one to reach the finish line "winning".
The questions were:
Has your character murdered someone on the show?
Have you ever been tipsy on set?
Ever worn handcuffs in real life?
Licked one of your co-stars faces?
Had sex in your dressing room or trailer?
Gotten a tattoo you regret?
Ever seen a co-star naked?
Broken anything on set?
Does you character get killed off this season?
Have you ever lied on a talk show?
[The winner was...]
What's the most scandalous thing you've ever done ONTD?