Helidropper is an interesting puzzle game for free.

Publisher:	Siteken Games
Downloads:	1
Software Type:	Freeware, 0.00
File Size:	824K
OS:	Windows All
Update Date:	07 January, 2015

Drop the boulder into the container using your helicopter! Make sure you place objects in the right place, so the boulder rolls on the right path! Click the arrows or use your keyboard arrows to move your helicopter and drop the boulder.