No, unless you mod the game. You can unlock Wesker to play in the mercenaries mini-game but that's it. To unlock him there, you have to get a four star ranking in the waterworld area.
Here's my answer to you. DON'T CHEAT! It's not worth it at all. Just go through the game and deal with it. The game itself is actually not that hard.
All the cheats are to get unlimted boost the cheat is : VROOOOM The cheat to get all minigames is : MATTL66 THe cheat to get all cars is : YAYCARS The cheat to get all paint jobs is : R4MONE
It depends on the game and if there is a cheat for a gamecube game then look into the menu to find it or look on the internet to find out where to enter the cheat for the specific game.
No
Sims cannot have babies in the Sims 2 for Gamecube.
They doesn't exsists! Only if you have your Playstation Enhancer in.
There are no cheat codes
You dont
no
No none that are valid
There are none
Yes