The Sims 2: Castaway (PSP)
Quickly press L, R, Up, X, R while on a lot in Live mode to spawn the Cheat Gnome. It appears at different locations, depending on which island you are on, and must be found. The following codes can now be enabled, which will unlock the corresponding options on the Cheat Gnome after it is found. To use the Cheat Gnome, approach it and press X.
Quickly press X, R, X, R, X.
All crafting resources
Quickly press Square, Triangle, R, Down(2), Up.
Maximum current food and resources
Quickly press Square(4), L.
Quickly press Left, Right, Square, R, Square.
Quickly press L, Up, R, Left, Triangle.
Quickly press R, Up, X, Square, L.
Quickly press Triangle, L(2), Left, Triangle.
Abducted by aliens
Go to Crystal Island and send an SOS using the radio. Aliens will abduct you, give you a can of alien food, and drop you off.
Easy skill points
Make an account that has their main skill as cooking. Then, get their cooking skill up to level 6. Then get level 6 mechanical. Enable the "Maximum current food and resources" and "All plans" codes. Next, make the metal stove. Cook something random and eat it. If it increased your skills, open the screen and select "Island Travel". Travel to another part of the island. You should now have the raised skills permanently. Repeat this process to get 10 of every skill, so that you can build a bungalow, bathroom, shower, marimba, and a better bed.
Strategy guides from GameFAQs