A product named “MKZ4”, a hack kit for Tamiya Wild Mini 4WD toys in Japan. With this kit, you can learn how to program and how to develop an IoT gadget – a smart toy controllable with your smartphone.


The MKZ4 kit includes a wireless module “ESP-WROOM-02” with a SoC “ESP8266EX”, a special circuit board for Mini 4WD toys, special steering parts to enable motion and turning controls and other parts necessary to customize and hack the toy made by Tamiya.

Customizing Tamiya’s Wild Mini 4WD with MKZ4 makes it possible to control via a smartphone web browser to move forward/back and turn right and left.

Prototype Movie

Cerevo has confirmed the following Tamiya Wild Mini 4WD series models work with MKZ4, please refer this site for more details on the series.

  • Lunch Box Jr.
  • Wildsaurus
  • Nissan King Cab Jr.
  • Bullhead Jr.
  • Toyota Hi-lux Monster Racer Jr.
  • Toyota Hi-lux Surf
  • Nissan Terrano ’93 Paris Dakar
  • Dash-CBW Command Saurus
  • Mammoth Dump Truck