This small tool can resize any Java game for a s60v3 phone.
This free PC software is able to edit the manifest and resize the icon of the game.
This tool requires .Net framework 2.0
Run WinRAR, open the file (jar).
Look for the META-INF.
Open this folder.
Look for file called MANIFEST.MF.
Open it in notepad or any other txt editor. . .
Add the following two lines at the end of the text at the end of the MANIFEST.MF file:
In the example above 'www,xxx' represents the native game resolution, 'yyy,zzz' represents the resolution of your phone display.
via: Symbian Freak