Adding several UIViews in random places of the screen at intervals

FROM : Benjamin Ortuzar Seconde
DATE : Wed Mar 12 23:08:07 2008

Hi guys,
Im interested in finding a good way to display Views in different parts of
the application at random times, so the user can interact with them.
The application is supposed to be a game in which several creatures appear
in different parts of the screen and u must click on them to kill them.

Is it better to use a View or a Layer for displaying the creatures graphics
?

I would appreciate any advice on this.

Thanks in advance,
ben