I want to custom a OS(windows mobile) but not contained games .and then I can save memory for other use.which one know how to deal with it?

I delete the MSN THrouth the setting of macor:IMGPOCKETMSN.but I don't know how to delete the games such as Bubble Breaker..

I know how to deal with it.we can delete the this line:
<PACKAGE_FILE>Entertainment</PACKAGE_FILE>
which is in the file PhoneSKU.sku.xml