Monster Truck Hidden Keys is a free online skill and hidden object game. Find out the hidden keys in the specified images. Each level has 10 hidden keys. There are 6 levels in total. The time is limited so be fast and find all hidden objects before time runs out. Clicking in the wrong place several times reduces the time by an additional 5 seconds. So, if you are ready start the game and have fun! monster truck,hidden keys,puzzle game,skill game,hidden object game,kids game,fun game,online game,free game,puzzle,kid friendly,time challenge,find keys,secret,truck game,hidden object,skill challenge