How can you identify a pirate GBC game?

[toythatkills]

I bought DWI+II from (I assume) eBay years and years ago, and just going to start playing it now, only it's occured to me that it may well be a pirate copy (I was far more innocent back then.)

I know the methods of identifying fake GBA games and I wondered if there were similar ways I could check this out, before I get 20 hours in and lose a save file...

Cheers

EDIT: I've just found the manual and suspect I'm OK going by the quality of fake GBA manuals I've received in the past, unless this is uncharacteristically professional. Still it'd be good to know what to look for!

[spinpug666]

Have alook at the screw used to hold the cart together.
If it has a normal star type screw it's a faker. Iirc Nintendo used a 3 edged star screw which needs a special screwdriver to fit.

EDIT lol had a closer look, i was getting mixed up with yarred GBA carts.
By the looks of it Nintendo used a odd rivit looking thing which i've no idea how, or what tool you'd use to open it.

So if your cart has a conventional screw, you have been screwed lol