redletterdave (2493036) writes Nintendo posted its third loss in four quarters on Wednesday. Even though Mario Kart 8, its big first-party game released in May, shipped more than 2.82 million copies by the end of June, the Mario-themed racing game was not enough to help Nintendo's struggling Wii U console perform in this particular quarter. The company said it lost $97 million between March and June. Nintendo shipped 510,000 units of the Wii U in the June quarter, bringing the total to 6.68 million consoles sold — it's a big jump from the 160,000 units it sold in the same quarter a year ago and a small improvement over the 310,000 units it sold in the March quarter. Still, the Wii U is still lagging behind the PlayStation 4 and Xbox One consoles, and Nintendo must also contend with mobile games available on Apple and Google's app stores, which cost but a fraction of a Nintendo game.