My daughter was so happy to find this set at Walmart (for only $15). I quickly scooped it in our cart. Once home, I put the Garage together. Like most of the other Hamster sets, it is wobbly and falls apart easily (I'm thinking of using super glue). My daughter put a Hamster in the tunnel leading to the garage and let it go to the car and garage, but the Hamster got stuck in the car. The hamster's wheels were spinning and spinning, but would not make it through the doors. I followed the instructions, flat surface, loose garage doors, but it took 3 tries and FINALLY the hamster made it out of the garage 2 inches and then sped backwards very quickly to the garage. Okay, my daughter was then frusterated and resorted to pushing the hamster car around on the floor. Her friend came over and tried the hamster car on the kitchen floor (with out the garage). It would go forward 2 inches and speed backward 12-14 inches. Not much fun. My daughter and I are VERY dissapointedin this product. If you are looking for a fun Zhu Zhu hamster accessory try the Hamster Wheel (I found at Walmart too for $15), my daughter and I are much more satisfied with that Zhu Zhu toy (even though the tunnel to the wheel falls apart easy)One hint I would advise to avoid the high prices on Amazon, is to look at your local Wal-Mart. I found hamsters for $8, Bed & blanket for $5,the 2 room house / activity center for $20, and the garage and wheel for $15 each. If you can find an associate they may be able to let you know when the next shippment may occur. (that's what I did). Good luck on your Zhu Zhu pet search!