The Favored of Star Patrol

From the introduction:

The Favored of Star Patrol is a co-operative, GM-less, dice-less storytelling game, in which a team of special galaxy patrollers face seemingly impossible odds and defeat them, all within 2 hours.

The heroes patrol the universe in a starship. Mysterious aliens have given each of the heroes a Sub-D Crystal, a powerful gem that orbits their heads. With the Crystal, they can sense danger, communicate telepathically over great distances, and even understand alien technology.

Players will take plot points and conflict points throughout the game, so make sure you have 2 kinds of tokens (candies, coins, stones; whatever) to represent these.

You also need a timer that can be set in at least 5-minute increments.