Goodbye world!

I installed "Hello World" out of curiosity. Checked out how it ran in tray . Then I used App Manager to uninstall the thing.

It was removed from the Extras menu and is no longer in the tray but it still shows on App manager as installed. If I click to uninstall again App manager reports "Unable to uninstall hello-world-app". A "hello-world-app" now shows in "Updates" but clicking on this reports "Unable to update hello-world-app".

How do I uninstall this app from hell that consumes 245 kb of the device memory?

BTW, it is described as an

Any Help would be appreciated.