Chhotu, the dhaba boy, stands on the left with a gulel (a slingshot) and a fresh roti. Touch anywhere, pull back and let go: the direction sets the angle and the length sets the power, like Angry Birds. A dotted arc shows the path: the whole arc in Easy aim, only the first part in Pro, which scores double. Land the roti in the steel dabba, the cane tokri, a handi on a high shelf or a waiter's moving thali. Wind blows left or right, a washing line, a table fan and Moti the street dog get in the way, and bouncing off the tawa or the wall is a trick shot. You have three rotis: every miss feeds one to Moti, and a golden roti in the air wins one back. Every five landings the stage changes and a new idea arrives.