Obtain T.N.T

Obtain vice grips

Obtain the whip

Obtain nooses

Obtain potions

Obtain invisible potions

Obtain missiles

Obtain the third container

Obtain the fourth container

Upgrade your gun to max level

Upgrade your whip to max level

Get the first clue

Get the second clue

Get the third clue

Get the fourth clue

Get the last clue

Defeat the alien computer