Tell Random Abs how long you want to work out for and you will get a uniquely generated ab workout every time you use it. Random Abs picks from a list of 12 exercises, each lasting one minute. These exercises include toe touches, v-ups, sit ups, crunches, penguins, plank, reverse crunches, Russian twists, flutter kicks, mountain climbers, leg raises, and bicycles. Send feedback if there are more exercises you want included!