Crashed Spaceship is an underwater location in Hungry Shark Evolution that contains many entities. Sometimes even dangerous ones such as Alan, Destroyer Of Worlds or Mr Snappy (Mosasaurus) . There is a portal near it that takes the shark to an alien dimension with sharks that look like stegosaurus and huge tuna or in the Shark Week 2017 Update, Shawaii.  It is possible that the alien dimension is Alan, Destroyer Of World's home. Beware that if you find a way out of the Alien World, a dangerous shark may ambush you outside the portal.