Can I please ask how you're supposed to actually use this? I know the button combination is Select + R, but all attempts at getting this code to work have ended up in failure.
Using Select + R during the actual game does nothing, even if I change an area or whatnot.
On the other hand, using Select + R on the intro (where Giratina's silhouette is and whatnot) is okay, but if Select + R are held down and then continue is pressed, the game just reboots itself like in a soft reset, meaning the code is erased from the RAM and is unusable :/ It's restarted every time I tried this. I've tried on both the EUR (English) and USA versions of Platinum and got the same result for both.
I've also tried holding Select + R for most of the intro and releasing before pressing Continue on the game; it loads up fine but there is no effect. The text just stays at the same Fast speed that I have it set on in the options.
Does anyone know how you're actually supposed to use this code? I've searched loads but have never found a solid answer for it :/