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Pretty much already confirmed fake, but I'll just toss in my two cents: All four of these are fake as hell.
I have a full set of the most common type of fakes (same as OP's) just to show people comparisons. The ones on the left in this picture are fake, the ones on the right are real. They also commonly come in that same plastic case in the lower right, so if they came in those cases then they're certainly fake. Watch out for those in eBay listings.
I will say, the fakes have gotten pretty damn good these days. If you aren't familiar with the real carts, then you probably can't spot them. This is why I honestly just advise newcomers to pirate all the old Pokemon games, because the market is so saturated with these Chinese fakes now. That includes the DS games, by the way.
OP, get your money back if you can.