the thing is, its the full game everything is as it should be ... theres no pikachu mini games like in the special edition. its not a label re-print (I know that much for sure) its the same one I have had as a kid which was bought new
If you bought this new in store, as you say, hold on to it as this is rare.
The biggest stand out for me is that you see Pikachu's feet. On the original trilogy (r/b/y) they cut the lower half of he Pokemon off at the waist or knees. No feet.
It also says the color. That didn't happen until later generations. ...edit - you CAN see Blastoise's foot. But my point remains for Pikachu.

Also that label screams poor quality image. Are you in the US? Because all of my info is based on US material. So I can't speak for anywhere else, but the Pokemon labels have always looked sharp and crisp. Yours looks like it was prnted on a 1999 inkjet...no offense