The Red Cross and Tetris have partnered in a bid to encourage blood donations in the United States.

Until June 9, blood donors will receive an exclusive Tetris + Red Cross t-shirt, while supplies last.

The Red Cross partners with Tetris to encourage US blood donations

Donors will also automatically be entered for a chance to win a trip for two to New York to meet Tetris creator Alexey Pajitnov.

Appointments can be scheduled by visitingRedCrossBlood.org, downloading the Red Cross Blood Donor App, or calling 1-800-RED CROSS.

The Red Cross partners with Tetris to encourage US blood donations

“The cross-generational appeal of Tetris makes it a ‘perfect fit’ for us in helping to reach audiences young and more mature to encourage them to take action and roll-up a sleeve to help save lives.”

The collaboration between Red Cross and Tetris coincides with the game’s 40th anniversary.

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Last month, American convenience store chain7-Eleven partnered with Tetrison a line of merchandise including apparel and a handheld featuring an officially licensed game.

Oklahoma teenager Willis Gibsonrecently became an internet sensationafter he was crowned the first known person to ‘beat’ the original Tetris game on the NES by reaching its true ‘kill screen’, wherein the game crashes.

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Previously, it was believed that only AI could reach Tetris’s kill screen, but Gibson managed it, and in Januaryfootage of his stunned reaction attracted mainstream coverageacross the globe.

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