Oxygen Freejumping, in Kendal Avenue, West Acton, is 27,000sq-ft and contains 150 connected trampolines.
The centre gives visitors access to dodgeball courts, air bags, 'walk the wall trampolines' and an obstacle course. It also offers family bounce sessions, fitness classes, a professional trampolining academy for aspiring gymnasts, parkour classes, and Teen Takeovers which include two hours of strobe-lit bouncing with a live DJ.
The centre also has private rooms for children's parties, which include one hour of filmed bouncing, and then a screening of the bouncing session in a private room with pizza and drinks.
The special launch of the park featured freerunning and gymnastics displays, and loads of local children testing out the trampolines for themselves.
Six-year-old Frieda, from St Vincents School in Ealing, speaking at #JumpFest, said: "It's much bigger inside than I thought. I really loved swinging on the ropes in the obstacle course with my friends and I’m going to ask my mum if I can have my birthday party here in August!"
The centre also boasts a freerunning academy, led by Bond villain and parkour founder Sébastien Foucan, for daredevil kids who want to learn the sport. Foucan displayed his freerunning skills at the launch by jumping off a wall and rolling into the centre.
An Oxygen staff member said: "I think the adults love it just as much as the kids, they can get really competitive! The trampolining actually burns 1,000 calories an hour... If you can make it an hour!"
Sessions will cost £12.50 per child per hour. The park will open from 8am to 10pm Monday to Saturday and 8am to 9pm on Sundays.
For more information, or to book a session, head to the official website.