It's a 3D game developed in Unreal Engine 4. It's a pun based on Biohazard (You guessed I think xD). It's an adult parody game based on the Resident Evil franchise. So you can expect a survival-horror (action-oriented) with infected enemies that

Marge is spying on her two sisters Patty and Selma Bouvier as they are being fucked by Darren. Meanwhile Bart manages to seduce his sister Lisa in next bedroom. But Darren manages to join in the incest brother and sister fun too. Later on Darren