RubyGosuTutorial
A warm welcome to the totally useless Game Programming in Ruby tutorial
sudo gem install gosu or download from [http://code.google.com/p/gosu gosu website]
gosu introduction: [http://code.google.com/p/gosu/wiki/RubyTutorial]
for platformer tile physics see [http://jnrdev.72dpiarmy.com]
example game code: [http://github.com/oneup/puituniverse/tree/master poit universe]