I've been playing these games since the very first one and I must say that they are really fun. It's definitely addictive and the Pokemon themes are pretty nice. The only reason I give it a 4.5 instead of a 5 is because the battle system feels a bit grindy and kind of too simple. If the battles were either a little more involved or the leveling system didn't take so long then it might not make me feel so compelled to quit before I get to the end. I really do like the RPG style fighting, but by the time I get to bulbasaur, I'm always having to re-fight the echo of pikachu's over and over.
On another note. I absolutely love the art and... the "art" is pretty nice too. The animations are a pretty cool addition. Although I know they've been in the game for a few versions now.
Please keep making these and good luck.