Creatures must react to danger with a "fight or flight" reaction, which means either boxing their opponent or commandeering a nearby blimp. Hone your pugilistic instinct with today's Groupon: for $29, you get 60 days of classes at Round One (a $120 value). This Groupon is valid for youth boxing, beginner adult boxing, and beginner adult kickboxing classes only.

Round One helps students amp self-confidence and obtain valuable self-defense skills with a six-day schedule of classes led by a training staff of decorated fighters, including the 2011 IKF Welterweight Kickboxing champion and kickboxing national team coach Brad Fowler. In kickboxing sessions, students learn the basics of a fighting style that works the whole body, including hidden muscles masquerading as spare Silly Putty. Boxing classes lay fighting framework by teaching the sport’s fundamentals before instructors oversee moves and ensure proper technique. Both class styles ameliorate students’ health by boosting lean muscle mass, aiding in stress relief, and stoking metabolism without the hazard of swallowing a firework. Fighters of all fitness levels attend both beginner kickboxing and boxing sessions, and the gym suggests that each fighter supply his or her own boxing gloves and hand wraps, although they stock a small supply of community gloves.