Looks like Amazon plans to take advantage of the Fire phone's head-tracking tech at every turn, so it put its Game Studio to work developing two new titles especially for the device. The first one called Saber's Edge is a strategic pirate puzzle game, while the other, called To-Fu Fury, is a puzzle platformer (think 'Splosion Man) that stars a tofu martial artist. They sound like funny, typical mobile games, other than the fact that they support the Fire phone's "Dynamic Perspective" feature that tracks the movements of a user's head. Sadly, you can't exactly control the games by moving your noggin (that might sound silly, but at least that'll make the games truly unique), but you can peek around the corners to see hidden obstacles or bonuses. Of course, you can always just tilt the phone if you don't want to look silly in public. If you don't mind the games' limited support for the feature, you can grab em for $1.99 each -- but only if you're also getting the Fire Phone, which starts shipping this week.
Updated (07/23/2014): While To-Fu Fury costs $1.99, it turns out Saber's Edge is actually free!