When i took off the screen off for cleaning the tabs scratched off the metal contacts on the main board. Now my gamebuino will not boot up how do i fix it or can i.
You are allowed to upload pictures, select "upload attachment", select and upload your file, then click on "insert inline" The 4 metal tabs which holds the screen to the PCB don't carry any signal, their purpose is purely mechanical, it's not a problem if they a scratched. When you tell that your Gamebuino doesn't start please be more precise: do you have the start-up sound? Did you try to upload a program through USB?
You can change the size of your pictures using paint or any simple image software. Please try to upload a program through USB, it's the third time I ask you and you didn't try this simple solution which is likely to solve your problem, or at least to tell us what works and what doesn't.