By Chris Morris

PHILADELPHIA (CBS) – On today’s APP-tastic and Outta SITE – Scribble Hero.

Taking a well-known formula and making it better is a challenge for apps, but it’s one that Scribble Hero pulls off well.

From the weapons to the sidekicks to the ability to play with one (or more) of your ghosts, the game takes pains to be challenging, but not frustrating — and never impossible. It’s an imaginative game that manages to make the shooter genre charming – on a cartoon level.

Check out the Scribble Hero app.