Goliath BoomTrix Multiball GL60103, Xtreme Trampoline £6.80 @ Amazon

Just seen this on Amazon for my son’s birthday - seems a decent price drop. Same set is £18 on a different listing from Amazon so £7 seems a deal and worth a punt.

Details from Amazon:

Boomtrix
Make your own course and use gravity to do as many tricks as possible!
Boomtrix is the perfect range to develop creativity and experiment with the laws of physics. Make the biggest, best and craziest chain with all the components and create unthinkable tracks wherever you want. The launch track drops the ball from a height, creating speed and let the ball bounce through the pads by means of gravity. Create your own course and use gravity to do as many tricks as possible!

Multiball
With the Multiball Pack you can create your own Boomtrix track. Bounce the ball with the coolest stunts anywhere. This ultimate pack contains the Ramp Tower that allows you to release multiple balls at the same time for an even more impressive course!

Boomtrix Multiball Contents
1x ramp tower
5x trampolines
3x trampoline curves
1x stunt ring
3x stunt wall
1x flapping goal
8x metal balls
Instructions

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Added by @cyberbabenilorac


Boomtrix is the new revolutionary ball course with extreme trampolines and unthinkable tracks. Let your imagination run wild and do as many tricks as possible! Have fun while improving concentration and fine motor skills.


Boomtrix is a fun and active STEM toy as kids engineer their own chain reactions. Have fun while improving concentration and fine motor skills.


To start the game position your launch tower at a fixed location. Drop the first ball, place a trampoline where it falls and continue to build your own track. Discover new tracks every time you play!


Play with different levels to change the speed and direction of the ball. Launching the ball from a height will create speed while changing the level of the trampolines will change the direction of the balls. There are so many options, it never has to be the same!