Without healthy sources of competition, human beings would resort to engaging mirrors in eternal staring contests or reading about fantasy baseball. Unleash sporting aggression with today’s Groupon to Trampoline Cageball & Climbing Gym in Murrieta. Choose from the following options:

• For $15, you get two all-day passes (a $30 value).
• For $25, you get four all-day passes (a $60 value).
• For $19, you get a one-month membership (a $40 value).<p>

The bouncy emporium at Trampoline Cageball pits patrons against one another in high-octane trampoline-cageball competitions. A one-on-one contest that combines the basic concepts of basketball with the aerial dynamism of trampolines, cageball places players on two adjacent, Olympic-size trampolines, from which they spring up to 14 feet skyward in an attempt to shoot a ball into their opponent’s hoop. Governed by a simple set of rules, the innovative contest requires the strategic panache to read competitor’s movements and the ability to withstand the physical rigors of constant up-and-down explosiveness, like a confused firework. The Ninja Warrior obstacle course challenges gladiators with a 17-ft. warped climbing wall, a salmon ladder to test upper body strength, and a campus board to better climbing techniques, and the facility also boasts a gym filled with free weights and free credit reports. Those looking to spurn gravity’s tyrannical regime in an uncompetitive forum can make the bicep-burning ascent to the top of the center’s 24-foot pegboard, or traverse the unsteady bridge of a slackline, which is like a tightrope, but thicker, looser, and immune to the charms of traveling circuses.