From Homepage:
Slingshot-v1.0
An alien, space environment reckless company has decided that our solar-system
is the ideal place for storing their nuclear waste. Unmanned spacecrafts has
been seen all around the solar-system, beaming out dangerous waste pods. This
has become a threat to all space travel and now it's your job is to clean it up!

Controls
Mouse - Aim space shuttle.
Mouse wheel or up/down keys - Set launch power.
Left mouse button - Launch torpedo.
Right mouse button or Space - Destroy all torpedoes on screen.
Escape - Exit level.
(Programmers note: The nuclear radiation has messed up the space time fabric so
don't blame me if there are two Earths or if Jupiter has a single moon very much

resembling mars.)
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OS4-notes
The only thing I´ve done is making an icon for the startscript
Thanks to Spot-Up for Pygame
                    John Eriksson for Slingshot
                    Marko Seppänen for finding John Eriksson´s Hompage