Inspired by the Flash game N3wton, http://www.kongregate.com/games/Zyzic/n3wton this is an attempt to replicate its physics in gosu.
Also see: http://www.slideshare.net/vishnu/simple-game-development-with-ruby/
You propel your character via its bullets and try to shoot enemies off screen.
These details are provided for information only. No information here is legal advice and should not be used as such.