Changsha, a city in China’s Hunan province, has opened up an Angry Birds-based theme park, but it appears they did so without proper licenses.

CBS says the park allows visitors to shoot stuffed birds with giant slingshots to knock down items and pig balloons. 

Rovio, the developer of the game says it would love to partner with the park but has not been contacted. 

Says a Chinese park official: 

This [Angry Birds attraction] serves as a method for people to purge themselves and to gain happiness.

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Theme park creates real-life Angry Birds game by