In the Safari Zone, when a wild Pokemon appears, Trainers cannot send out Pokemon to battle it. Instead, Trainers must face Pokemon only with simple tools, and catching a Pokemon becomes much more reliant on luck, as Pokemon are able to run away from the Trainer at any time. Trainers may throw Bait to make a Pokemon less likely to run, but this also makes it harder to catch. Conversely, throwing Rocks will make a Pokemon easier to catch but more likely to run.