Cannon Hopper Leorad, Factory, Southern Cave

Riorad Village: Prepare by visiting shops and searching for items. Head southeast to the South Cave.

South Cave: Explore for items. Descend to B2 to fight the boss, Bionic Pooch. After the fight, Red Wolf assists. Use the computer to open the gate, then get into the tank named Mosquito. Drive northwest to the North Cave.

North Cave: Collect items while driving Mosquito. Navigate B3 carefully to reach a treasure chest. Descend to B4 to fight the prize head boss, Salmonella Family x2. Obtain monster badge one. Exit the cave and head north to the Northern Barrier. You can return to Riorad Village for supplies.

Northern Barrier: Disembark Mosquito. Enter the room with a television and speak to the man on the right to receive the "ID card (c)". Search for items. Use the computer in the other room to open the gate with the ID card. Re-enter Mosquito and proceed east to Negi Village.

Negi Village: Search the potato field for the "wedding ring". Give the ring to the girl in the kitchen to receive the "ruby lens (1-4)". Search for items. Drive southeast to Bobre Obre Town.

Bobre Opre Town: Visit shops for equipment and supplies. Donate to the school to erect a bronze statue. Drive to Uriu-san's House.

Uriu-san's House: Enter the house and go through the door on the right. Speak to the mechanic Masakazu, who will join the Hero in Mosquito. Search for items. Drive east to the Seashore Factory.

Seashore Factory: Ascend to 3F and speak to the President to gain permission to use the wild buggy. In another area of 3F, have Masakazu get into the Buggy. Navigate through ledges and holes to reach 1F. On 1F, have the Hero get into Mosquito. Drive across the iron bridge to fight the prize head boss, Dos Piranas and frogman x2. Obtain a monster badge. Drive both vehicles back to Bobure Opure Town.

Bobure Opure Town: Purchase a "dug system" for Mosquito and 8 armor piercing rounds. Drive north of Negi Village through the exploding field to Cannon Gun Position.

Cannon Gun Position: Enter the position and fight the first Big Cannon boss. Use armor piercing to shock it. Use the "dug system" to warp back to Bobure Opure Town for more supplies if needed. Return and fight the second Big Cannon boss. Drive northeast to Audrey Town.

Audrey Town: Go to the building on the top left and downstairs to the bar. Speak to the female soldier Jean, who will join the group in battle against the Bad Group x6. After the fight, Jean will join the party. Go to the transmission center and use the computer to warp to Negi Village.

Negi Village: Exit to Negi Swamp.

Negi Swamp: Traverse the swamp until the prize head boss, Dr. La Flecha, appears. Fight and defeat Dr. La Flecha to get a monster badge. Return to Negi Village.

Negi Village: Use the transmission center computer to warp to Audrey Town.