I imported the 2D Game Animation example, RetroBlaster. It crashed in the emulator, and it turned out that it couldn't find the file 'system\apps\RetroBlaster\retroblaster.mbm'.
Checking the build output, it seems that the file is being written to Epoc32\release\wins\udeb\ and not Epoc32\Release\wins\udeb\z\system\apps\RetroBlaster as the app expects it.
I don't know much about Series 60 programming yet, and can't tell whether the build is wrong or the application is looking at the wrong place, but it'd be nice to know the answer, and even nicer to get things working well.
(BTW, copying the file to where the application expects it made it run fine.)