It's Playtime: They are Coming

Game description:

This game belongs to shooters. But we bet you have never played anything scarier. The thing is that you need to kill phantom monsters. You will find yourself in a completely dark room. Your enemy is hiding somewhere around. And you must smash them to pieces before they attack you. You will see absolutely nothing, only a terrible neon grin will appear as a flash from the darkness. Do not miss the right moment to open fire and destroy the monster. Check your reaction and reach the highest possible score.