Saturday, March 15, is Disney Infinity Day at GameStop, and the retailer plans to celebrate with a round of price drops accompanying the debut of the game's final two playable character figurines.

Disney Infinity's Phineas and Ferb Toy Box Set will be available exclusively at GameStop this Saturday, introducing Phineas and Agent P as playable characters and adding series-themed items, buildings, and backgrounds to the game's sandbox-style Toy Box component. A wider retail release for the set and individual figurines will follow on April 1.

Customers who purchase the Phineas and Ferb Toy Box Set at GameStop this weekend will receive a code for a downloadable Phineas and Ferb mini-comic, along with a free Disney Infinity poster, while supplies last. Disney Infinity fans will also get the chance to complete their collections for cheap, as GameStop is offering a buy two get one free sale on individual character packs, along with a 50 percent discount on all play sets and accessories.

[Image: Disney / GameStop]

This article was originally published on Joystiq.

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