Here are some cheats and tips for the game W.O.R.M.S..
More Weapons:
At the title screen, enter the “Worm Options.” Once inside the “Worm
Options,” enter “Weapons.” At the “Weapons Options” menu, move the
cursor off any of the options, including “Exit,” and press Z and C
simultaneously ten times. This adds new weapons, including Banana
Bombs, Sheep, and Miniguns to the Weapon Options.