You may think it's a cartoon, but don't be fooled because it IS an actual adventure arcade game. You play as Dirk the Daring as he must overcome the obstacles in order to save the princess from a big fat treasure hoardin' dragon. Simply pick the right choice, and you'll clear the level. Pick the wrong one, and you'll see what is it like seeing Dirk dying when you screw up.
Good game, but it's mostly the animation that is totally awesome. But don't play the other ports other than the arcade. I mean, it's not like the original for that any matter.