Long Neck Run

Here is a strange ring-collecting arcade game called Long Neck Run, which is made from a 3D game engine. You are required to help a long neck stickman to collect more colorful rings to extend his neck and be taller. Only the same color of rings as the current color of the stickman could be collected, or else you will lose your current ones to the initial state. I hope you will collect enough length to win the height of more toys and famous tall buildings like the Eiffel Tower.