In Delirious Bird Ryan Melmoth takes Flappy Bird tributes to a new level. It's the classic Flappy Bird mechanic, but there are pills all over the place that will make you completely delirious (and will make it harder to stay alive!). Therefore you not only want to avoid the pipes, but also the (sometimes even moving!) pills. Maybe you already understood this from the description, but just to make sure you do: playing this game will make you lose your sanity.