Worms 2: Armageddon

You must ONLY use the Bazooka to damage the enemy in order to obtain this trophy, however you CAN use some Utilities. However, as previously stated, I would recommend that you use nothing else just to be sure. I found that the best mode to try this on is Pro - there's no Jet Packs and only 2 Ninja Ropes available in the Inventory, which means that the enemy will not be able to move around the map as much. Remember to take note of the wind direction and the position that you plan to hit when firing - landing a Bazooka to the left of a worm will send it flying over to the right, and vice versa. This is especially useful if an enemy worm is near some water. The environment is also important - make note of any explosive barrels and mines and try to use these to your advantage. An "above ground" map is recommended for this, as there will be no ceiling blocking your Bazooka.