This game really bring memories for me being the first pokemon game I ever played so sorry if this review is a bit bias.

Graphics: 10

I give the graphics of this game a solid 10. This games graphics gets a 10 because this game has the best graphics the Gba could offer. Sprites in the game looked like sprites from the show. And this is what makes this pokemon game different from the others since most didn't have this. And one last thing is how the gym leaders looked. They really looked like in the anime. That's why I rate the graphics a 10

Sound: 9

The sound is great in this game. Route music, gym music, city music, etc. The reason it isn't a 10 is because the route music can get annoying. But if that doesn't bother you, you could give this a 10. That's why I rate this a 9

Addictiveness: 9

This gets a 9 in actictivness because even though its one of the first pokemon games its more than likely you played this more than once. The addictiveness would be a 10 except for the fact that after you "complete" the game and maybe restart with a different team there not much to bring you back. The problem is that there was no way of online battling except for that cord no-one ever uses. This is the problem with all the pokemon games before the DS came out. That's why I rate this a 9

Story: 9

This story line goes into major detail. From battling team rocket and all the events that happen in the game. This is a quick overview of the story: You are Ash/Red from pallet town and you just turned 10 years old, so you are getting your first pokemon. Then you travel all through the kanto region collect gym badges and stopping Team Rocket's plans of taking over the world. Then the story continues after you beat the champion. That's why I rate the story a 9

Depth: 9

This is one of the longer games Nintendo has created. There are many goals in this game and it takes days to complete( Even more if you have no experience). And one thing I enjoyed is that there were a lot of events in the game that happened in the show. That's why a rate the depth a 9

Difficulty: 6

Most pokemon aren't very difficult. But this one is one of the more difficult pokemon games. And I can say this is the only pokemon game that I haven't beaten the elite four. Also this game's gym leader where more challenging than the other games. And the rare pokemon where harder to find than the other games. That's why I rate the difficulty a 6

Overall: 9

This game was one of the best the Gba had to offer being fun and well thought. I have played this game over and over many times(still haven't beat the elite four) just for the heck of it. Reviewing the game overall I give it a 9

This is my 2nd review and I would appreciate some feedback and thank you for reading

Ah, but the trick is not to be biased when writing a review.
I still think you wrote a fair review though. It's not too short, and it's paragraphed nicely, so it's pleasant to read.
And overall, I also think this game deserves no less than an 8.
It's the second best Pokémon game, imo, only behind Pokémon Emerald.
Good review, keep it up.

This was an OK review. You could have put in some more detail in the sub categories. But it was good work.