[APP] Test your nerves. Screamer

https://play.google.com/store/apps/details?id=good.storyapps.test_nerves
With this test you can check - strong nerves as your friend. On the screen you can see the popular visual illusion. Show it to your friend and watch his reaction because after a few seconds you will see the most dreadful and terrible, and it is very Screamer screams. The game has added 2 Screamer - Jeff killer bear and a dog barking.