Defeat Clubman with stick and collect bola's.
Defeat Grizzly with Bola's, defeat Big Spider with knife.
Rescue F-Man, he gives the wooden tooth.
Defeat Red Spider with wooden tooth.
Tip
Found this tip (to be verified):
TAB + F1 ~ F5 at the title screen press and hold Start and press SPACE level rises at the same time.
Depending on the rising level of function keys are as follows: