Green Shell
You can shoot a Green Shell forward or backward. The shell will zip in a line until it hits either a kart, which will take a nasty spin, or a hazardous item like a Banana, which the shell will blow off the track. A Green Shell will ricochet for a long time- making it a persistent nuisance. In Grand Prix, you'll more likely to get a Green Shell the closer you are to first place.
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