Attached are three files.
1. Word document explaining the game flow and the background.
2. VS gameplay - indicating the kind of background needed. - we can provide more image references once you confirm your bid on the project.
3. an swf file depicting the kind of game that we need. This game is also developed by us, but there are some changes to the background and also the obstacles/element design - they need to match the VS gameplay jpeg.
We have the PSD files, font files and also reference images and more detailed specs, which we can discuss, if needed.
5 freelancers are bidding on average $250 for this job
Don't keep still on talking, please provide related files and we'll make a mockup for you, that is the most direct way, the strength will prove everything. Please check PM for samples' thing.