One day in the woods,
there are a lot of baer!!
So you bring down bears.
If you bring down many bears, bear run more faster and faster.
Could you bring down many bears?
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5 bring down bears -> Lv +1
Lv 1 up(Lv.1,2,3,4,...,30) , short bears spawn time
Lv 3 up(Lv.1,4,7,10,...,30) , bears speed up
Max difficult Lv.30
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