Also known as: モンスターエナジー, 魔爪, monster_energy, monsterenergy
Monster Energy is an Energy Drink, launched by Hansen Natural in 2002. The regular flavor comes in a black can with a green tear-shaped M logo, implied to have been torn by the claws of a "monster".
Various other flavors have been introduced over the years: an orange variant and blue, dubbed "Absolute Zero", a sugar-free variant, to name a few.