Highway Kings offers bonuses for a combination of 3 or more, but the higher-income icons are only two matching rewards. The most generous sign on the board - the red truck - even pays two points for a single symbol on the reel. In general, the payroll is a generous one. The steering wheel and tire icon are the lowest values for the game, four for just 10 and five for 50, but the sum has increased a lot since then. At the top of the scale are three trucks. For example, green trucks pay for five two, twenty three, 150 four and 1,000 five.