How do you get pachycephalosaurus in dinosaur king with action replay?

To get Pachycephalosaurus in "Dinosaur King" using Action Replay, you need to enter a specific code. One commonly used code is: "94000130 FCFF," followed by "B21C4D28 00000000" and "B21C4D20 00000000" to unlock the dinosaur. After entering the code, you should be able to acquire Pachycephalosaurus in the game. Make sure to save your game after entering the code.