ROBO RALLY: CONTAMINATION EXPANSION - Gentle-Robots… Start Your Microprocessors! If you thought that factory robots took the weekend off like you do (well, most of you), then you haven’t seen a ROBO RALLY yet. When the supervisors are gone and the cameras have been angled to watch the ceiling, the robots take charge and participate in exciting and deadly race-battles. ROBO RALLY is a competitive racing game full of robotic chaos! Program your robot to tag checkpoints, attach powerful upgrades, and turn this dreary old warehouse into a fabulous fast and frenzied fun factory! The Contamination expansion spills into your race courses with three new double-sided gameboards featuring new elements like radiation, radioactive waste, and one-way walls! Also includes 5 brand new Upgrade cards! Updated reprint of the classic Radioactive expansion from 1998! Join in on this creative programmed movement strategy game expansion! This is an expansion. Robo Rally Core Game is required to play.