Opinions in America about marijuana are changing. Voters in Colorado and Washington decriminalized possession of small amounts of the drug, and mainstream bloggers like Andrew Sullivan have adopted the end of “prohibition” a pet topic. Into the mix comes Dave Homan, a 35-year-old Omaha IT specialist, and his new endless runner, Drugbound, the first video game to advocate for the legalization of cannabis: Breaking the rules is always a thrill, so Drugbound embraces that feeling by providing an infinite sidescrolling runner experience through a nightmare devilscape of heavily-enforced government prohibition. In Homan’s game, which some clever people have already started…