Hold Start + Select until the game returns to the opening screen.
Use the following CDs to create secret monsters:
If you need money, first go to the shrine and use the first Monster Rancher CD. This should result in a Sueki Suezo, a monster with excellent stats, except for speed. Use this monster when battling in a free-for-all. If it wins, you will get money and perhaps an item. Note: This monster lives only for one week. If you need more money, unlock it and battle again.
Use the following steps to get a Phoenix again after it is retired or flies away. Take the disc from the PC game Dune 2000 from Westwood Studios to the shrine and you will receive a Phoenix with higher stats than the original one obtained from the Fire Feather. Other CDs that will unlock a Phoenix at higher stats than the original are Frente-Marvin and Saviour Machine-Legend Part 1. Note: An original Phoenix has to be obtained before receiving one from the disc. To get an original Phoenix, go on an adventure to Kawrea volcano (pre or post-eruption). Search the volcano. One of the items that can be found is a Fire Feather. Take it to the lab and use it as a secret ingredient combining any two monsters to get the Phoenix.
First, obtain the Jill monster. Use Jill in the Pappas errantry at least ten times in a row, without resting for a single week. Next, rest your monster for 10 months in a row. Go to the Pappas errantry ten more times in a row. Save the game at this point. Approximately one year later, it will die. Hold Start + Select to reset the game. Then, bring your Jill to the village and combine it with a Golem using the "Big Footstep" as a seasoning. This should result in a Sasquatch. Note: This may take several attempts.