Play Wood Cutters Mania
Control the Lumberjackmobile around the map and start cutting trees. Each log is worth 50$ and you will have to reach a certain amount of sum of money on each level to be able to pass it. Only some of the trees on each map are marked as future timber (follow the hints and you will know which ones). Once you get near a tree press the Z button and you'll trigger a tree cutting mini game at the end of which the marked tree will be cut and placed on the Lumberjackmobile. Transport the log back to the sawmill to collect the 50$ the log is worth!