In past weeks I moved from my (quite broken) Kubuntu 8.10 to the new Karmic Koala release 9.10.
The Pygame version here is the new 1.9.
Also I simply don't wanna continue using and supporting the old 2.5 Python version... so I tested the game and all related libraries on Python 2.6 and Pygame 1.9.
I had no problem at all! Or better: I found that the KexMenu version released on pypi (version 0.3.1) was currupted, so I released the new 0.3.5 fixed version.
I don't wanna spend time for now to explore the new Pygame features, I only need to move back to work on Cheese Boys!