Complete the indicated task to unlock the achievement.

Achievement	How to unlock
AZTEC_CHAMAN	AZTEC LEVEL COMPLETED.
BONUS_SHIELD	BONUS SKELETON LEVEL 10 COMPLETED.
BUFFALO_SHIELD	BONUS SKULL LEVEL 10 COMPLETED.
GOLD_SPIRIT	GAME COMPLETED.
HOPI_SPIRIT	ARIZONA LEVEL COMPLETED.
ICE_FACE	YOU SEEN THE LAST LEVEL.
INDIAN_STATUE	NEBRASKA LEVEL COMPLETED.
POLAR_BEER	BONUS LEVEL 12 COMPLETED.
SACRED_SHIELD	TEXAS LEVEL COMPLETED.
SACRED_SIMBOL	NEBRASKA BONUS COMPLETED.
SOURCE_OF_BLOOD	AZTEC BONUS COMPLETED.
SPIDER_SPELL	NORTH DAKOTA LEVEL COMPLETED.