I figured out a cheap (but VERY effective) way to beat every single combat challenge in Perfect Dark, each in as low as 1 second! No you don't have to have a GameShark or DexDrive, but you gotta have at least 2 controllers to make this one work. Read these directions carefully!

1.) Have player 1 select Combat Simulator and select Advanced Setup.

2.) Player 2 Presses Start

3.) Player 1 Selects "Load Settings" on the Advanced Setup menu, but does not select any setup yet, just stays at the "Load Game Settings" menu.

4.) Player 2 selects the challenge they want to beat in the Advanced Setup menu. Player 2 presses start until the green "...and waiting" screen appears.

5.) Player 1 Selects the Game Settings They want in the Load Game Settings Menu (NOTE: You must have a custom or already made setup, you cannot alter it after you load it.)

6.) Now player 1 can drop out or join the game it doesn't matter, of course staying in will give you 2 stars instead of just one.

If you want to save some time, make a custom setup beforehand. Choose a level, some sims and a limit. As long as any person can reach the limit or have the highest score you'll win the challenge.