Fan of amusement parks? Step in and brace yourself! Once the roller coaster is in motion, it is unstoppable. Unless you have drawn an end at the roller coaster, of course. You decide how exciting and far the roller coaster goes, by drawing your own roller coaster. Build in sufficient amount of loopings. Give the people that ride the roller coaster the time of their lives. But do not make it too exciting. Wouldn’t be cool if there was an amusement park that implement your roller coaster in their park.