Lure

The Lure is an series of optional upgrades for Big the Cat in Sonic Adventure and Sonic Adventure DX. They are a set of four different fishing lures for Big's fishing rod and each allows Big to catch bigger fish. For each Lure obtained, Big can catch progressivly bigger and bigger fish, and can be obtained in any order.

Lure Location One
This Lure upgrade is located in the Station Square Adventure Field, near the same location as Tails' Jet Anklet. To obtain it, go to the area behind Twinkle Park, where there will be a small canal that leads into the sewers. The Lure upgrade can then be found at the end of the canal, which is blocked with bars.

Lure Location Two
This Lure upgrade is located in jungle area of the Mystic Ruins' Adventure Field. When standing at Big's hut, go down the second path from the left in front of Big's hut. Proceed down the path and then take the second path on the left and you will find yourself in a small clearing where the Lure upgrade is found.

Lure Location Three
This Lure upgrade is found in the Ice Cap's Action Stage and is the only Lure found in a Action Stage. To reach the area where the Lure is located there are two paths; When beginning the stage, you can either go up the stairs on the left until Big reaches a small pool that leads to another area and follow the path until Big reaches a area with dinosaur bones on ice and a pool covered in ice. Otherwise, you can jump into the pool near the beginning and follow the path on the bottom until you enter a new area, where you have to surface and take the Springs in front of Big which will take big to the same ice covered pool. Head into this pool by breaking through the area with thin ice and dive to the bottom. The Lure upgrade can then be found there.

Lure Location Four
This Lure upgrade can be found in the Egg Carrier's Adventure Field, inside the Egg Carrier. Go to the holding cell area where Amy was held upon her capture of Zero, and the Lure upgrade can be found in the cell closes to the door. To open the cell, jump onto the button close to the said cell.

Trivia

 * The Lure is the only upgrade in the Sonic series which can be obtained mutiple times by the same character.
 * The Lure upgrades are the only upgrades in Sonic Adventure where Tikal does not introduce the upgrade to the character.