Gretzky NHL PSP Cheats
Cheat mode
Enter the unlockables screen in Gretzky Challenge mode and press Start. Then, enter “SHOENLOC” as a code.
Unlock characters without spending points
Note: This was done in season mode, but may also work in other game modes. You must already have points with which you can unlock players. In season mode, go to the unlockables section and unlock the player you wish to use. When leaving the screen, do not save the Gretzkey Challenge Data. Then, draft the player you unlocked to the team of your choice and save your season. Then, go back to the Gretzky challenge section and load up your old Gretzkey Challenge stats (or you can just reboot the PSP). You will have your points back, and the player you unlocked will still be shown as locked. However, he will still be on your team roster. If you are not in season mode, instead of saving your season, save your Pro Manager information. Basically the only time when you want to save your Gretzkey Challenge stats is when you earn new points.
Better framerate
To increase the framerate and make the game run smoother, set the gamespeed to 0. This will slow the game down enough (but not make it too slow) and the framerate will be able to keep up with the action on-screen.
Hidden goals in Gretzky challenge
90% face off win percentage (100 points): In a single game win 90% of the face offs.
250 shots on goal (150 points): Get 250 shot on goal in a single game.
3 Hattricks in a game (250 points): Get 9 goals with one player in a single game.
Perfect season (500 points): Win all games in a season either 29 or 82 games in length.