How can I move application user data (user specific settings, savegames, ...) to a different user?
I would use the app Titanium Backup.
1. Install Titanium Backup on the first user profile
2. Make a backup of the app or apps from the first user.
3. Install Titanium Backup on the second user profile
4. Restore data only to the second user profile

That should do the trick.

For instructions on how to use Titanium Backup look here: http://www.titaniumtrack.com/kb/titanium-backup-kb/titanium-backup-user-guide.html#backup