Crop Circles New High Score: 176384, Extreme mode, no stealth bomber used, 11 flamethrowers and a lot of landmines.
Flamethrowers do the most damage to the worm and the landmines do the rest. About 16 landmines will work and since landmines price doesn't increase like all the other defenses it costs exactly the same each time...$80...better than buying something else and having to upgrade it.
