I have beaten R, and while I can plainly see not everyone has a taste or sense of humor for R, I found it extremely quirky and fun, kind of like Katamari Damacy.
Except it's not for drug abusers.
I found it extremely challenging at parts, yet addictive.
And a lot of people were complaining about the graphics... This isnt a 3D shooter with Bump mapped textures, Dynamic Lights and Particle Effects to make you change gender on the spot, but for a 2D game, it's quite detailed...
So... What are your opinions on R?