Optimization unity flash

It depends what exactly you want to optimise.

If you wish to optimise your scripts, there are some basic guidelines for this here: http://docs.unity3d.com/Documentation/ScriptReference/index.Performance_Optimization.html

If you want to optimise the graphics performance there are lots of general tips on how you can do this: http://docs.unity3d.com/Documentation/Manual/OptimizingGraphicsPerformance.html

For optimising the file size, there are a few things you can do:

• Check your texture compression settings to see if you can compress them more.

• Look at the log when you do a build to see exactly what has been included in the build - it may be that there are some files you can reduce the size of or remove from the build.

• Ensure that you're not making a debug build as those are much larger in filesize.