According to Korean newspapers, Madhouse Studios
admitted that a political slogan regarding the president of South Korea was unexpectedly inserted in the episode 9 of "RideBack
". Madhouse refused to disclose the nationality of the animator who put the slogan and its intention. They will remove the slogan in the DVD.
Korean netizens found a jargon "2MBOUT" on the license plate of a car appeared in episode 9. It implied a claim for the resignation of the president of South Korea, Lee Myung-bak. The coloring of RideBack animations are outsourced to South Korean anime studios, so it has been a hot topic of discussions whether this message was put by Korean or Japanese animator.
Source: DKB news