Bests & Worsts Reviews from Amazon

My son got this for his birthday. It took an hour to put together and then we had to find a car that was light enough for the launcher to propel the car all the way up. Almost all Hotwheels cars do not work and we have hundreds. Then the cars get stuck in these tight corridors. Plus there is the mess of the slime. Once you put it all together, it says that it shouldn't touch carpet, clothes, furniture, walls, just about everything. This is a lot of money and it is not worth it. Do not buy!!!!