Download SpoilerAL from here.
Download the game tables from here.
Extract SpoilerAL into a directory and put the tables into the SSG subdirectory.
Now run the program, it's in Japanese but don't worry just follow this guide.
Note: Make sure to run the game you wanted to cheat first.
Here's an example:
Now supposed you want to cheat Shima Miako's stats. Go back to SpoilerAL.
|Select the cheat you want, in this case the chara param list|
|Then select the character name you want to cheat|
|Finally select and edit the relevant stats you want to cheat|
Now go back to your game.
TADA! You're now a cheater! (If the changes didn't appear try opening and closing the items list.)