Chop down 25 trees
Chop down 100 trees
Chop down 10 trees
Chop down 50 trees
Kill 10 bears
Kill 50 bears
Kill 20 bears
Kill 100 bears
Explode 10 skunks
Explode 50 skunks
Explode 25 skunks
Explode 100 skunks
Chop down 500 trees