I have done quite a few projects with NXP LPC1768. So, have full control on hardware and software for LPC1768.
Now your specification is not clear. When you say a game, do you mean joystick control?When you say LCD, do you mean dot matrix LCD display for displaying score or a graphical LCD ?
We can discuss the complete specification and agree upon price. Will offer services on hourly basis, after estimating number of hours of work involved to realise the specifications
Please send more details
Thanks