Pokemon TCG for gameboy - that door

[Pounce]

you know that yellow door at the back right of the challenge cup in the Pokemon TCG?... what's it for? has anyone ever found out?

I think it's awfully suspicious, especially since during competitions a man is blocking it and won't let you into it.. but I have never found any website or FAQ that has any clue at all. o.o is it just one of those things that will never be explained? >.>

how strange. I've always wondered what it was for but never thought to ask until now.

 

[Pogiforce-14]

I could probably tell you, but my TCg game got stolen a frew years ago, so I'm afriad I can't remember so i can't tell you what that door is for.