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Use the arrow keys to move the yellow ring.
In this Nanotube game, you have an important objective. That is to save every particle. Also, prevent them from escaping. If you don't act carefully, the structure will be broken and a bad explosion will appear. As you step into the first stage, you will have a big circle with a ring of yellow cells and something at the center. Your task in this Arcade Games is moving this ring to catch the dot having the same color. If you miss them many times, you will lose.