So I got the game name from http://videogamena.me/

There's no sound and most of the artwork are just placeholders. But I found this to be an enjoyable game. There are highscores on the main menu aswell :)
The source code is bundled with the game download, the game will run on practically any system with a JVM (Java basically).

Just to clarify, it says highscores, it should say scores. It keeps track of your last 6 games' score, and remembers the highest one that you've gotten so far!
I did intend on there being multiple weapons and enemies, but time got away from me :(

If the game doesn't open, and it says "Java is unrecognised", try this download.
http://bit.ly/ubr5DI
Make sure you open it with Java, which should be located roughly here "C:\Program Files\Java\jdk1.6.0_26\bin\".