Perfect Choro Q Reverse Spider

After laying my hands on a Perfect Choro Q that had a perfectly working gimmick I decided to push my luck and found this guy on sale for cheap on Yahoo Auctions. After jumping through several hoops since the site does not accept foreign credit cards, I received this but the shipping and transaction fees cost more than the low price of the toy itself.

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As its name suggests, it’s supposed to be able to change direction on its own, going in reverse after moving forward.

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Contents. Two runners for the car, a bag of parts for the motor and wheels, the Reverse Unit and one traffic cone. Seems like it contains a complex mechanism that required it to be pre-assembled.

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It comes with a “Perfect Engine”, a motor with interchangeable Cartridge Gears. In this case, they’re blue for endurance.

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Assembly is quick and straightforward as always. This guy has a unique design. I assume it’s not based on a real life vehicle.

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To “evolve” it into “Control Mode”, the wheels and front section are removed, and the Reverse Unit is mounted in front. The original rear tyres are moved to the Reverse Unit and larger tyres are clipped onto the rear axle.

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It looks quite cool in this mode, reminding me of the six-wheeled Tyrrell P34.

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An exposed gear on top of the Reverse Unit allows you to adjust how far the car travels before the mechanism kicks in. To set it up, you turn the gear to any position from 1 to 3 on the gauge on the side, push the reverse arm upwards and pull the top slider back.

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You can remove one of the rollers attached to the reverse arm to affect the direction it goes when it reverses. However on mine it tends to veer to one side when both rollers are attached, so removing the left one makes it reverse straight instead.

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Here’s how it looks when the Reverse Unit activates. The reverse arm props the back of the car up so that the forward-spinning rear wheels are lifted off the ground, while the treaded front wheels contact the ground and drive the car backwards using the spring tension built up in the top slider.

Does it work? Unfortunately out of the box, the car didn’t have enough power to overcome the tension at the point of activation so it simply stopped dead. I decided to risk it and pry open the Reverse Unit to see how it worked, but forgot to take photos of the insides. I’m not going to write a long essay on how it works, but I tried to remedy the issue by removing one of the springs inside, and now it works. However it doesn’t reverse very far; probably a limitation of the spring slider design.

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