Well, actually, Bit Trip Runner 2 uses a far worse word, but I don't like to use those in headlines! Today Gaijin Games released a new trailer for the latest Bit Trip game, and it abandons its retro aesthetic for something for more modern. Personally, I thing it looks incredible.
Some people may lament the change, but I welcome it. I wouldn't say I'm tired of the pixel art, retro style -- but I definitely don't think it needs to be used in every 2D indie platformer that hits the market. Props to Gaijin Games for having the guts to take things in a new direction.