i played the beta... It was pretty good, but having two gyms in the first two towns probably isn't the best. I noticed a few mistakes/bugs in the game
-On route 1 there is a few squares of land that you can't walk through
-the bug catcher that doesnt battle that is walking around in the grass beneath a house in route 2 misspells "sorry". Instead he says "soorry".
-On route 2 nearer to the bottom, there is a tree above a short fence that you can walk through half of the tree.
Thats all I noticed.
I loved Mikachu, even if it is a bit cheesey. I can't wait for the next beta.