Over 28,000 pieces, over 1 year build time, more a feat of DIY engineering than anything else. This is awesome. (I used to use that word a lot, but I’ve curtailed it recently, in this case, I mean it).
Instrucables user Shadowman39 really went all out to build this monster. Everything in it is made using K’Nex, and everything is mechanical, yes, even the scoreboard.
Wait, it get’s better, it’s coin operated. AND, it only takes Quarters!
Here’s a video of it in action: