Chrome 42+ disables NPAPI plugins like Unity3d plugin.
Copy and paste the following text into your browser: chrome://flags/#enable-npapi and enable the NPAPI plugin.
Or try another browser like Firefox
In Form Truck 3D you have Dr. Barinzovi help to bring back the 4 precious artifacts. Transform the monster truck with the number keys 1-4. Make use of the helicopter, drill or a big gun behind your truck. Collected money to buy useful upgrades.