It's been two years since a fighting game topped the videogame sales charts, but Warner Bros. Interactive Entertainment landed a one-two punch with "Injustice: Gods Among Us" last month and a reboot of "Mortal Kombat" in 2011.

"Injustice," from NetherRealm Studios (also behind "Mortal Kombat") pits DC Comics superheroes against its more notorious supervillains.

Deep Silver's "Dead Island: Riptide," Take 2′s "Bioshock Infinite," Activision's "Call of Duty: Black Ops 2" and Trion World's "Defiance," the interactive counterpart to Syfy's TV series of the same name, rounded out the top five bestselling games during the month.

Total software sales were off 17% during the month to earn $254 million, compared to the same frame a year ago, according to NPD Group.

But despite declines, April title outperformed those in 2012, up 118% in unit sales and 130% in dollar sales, NPD said. Sales of used games and rentals are estimated to have generated $76 million, while digital downloads, microtransactions, subscriptions, mobile apps and social network games are estimated to have collected $267 million.

Hardware also was down 42% to earn $109.5 million, as Sony and Microsoft prepare to launch the next versions of their PlayStation 3 and Xbox 360 consoles.

The Xbox 360 was the top selling game console for the 21st straight month in a row, moving 130,000 units.

Sales of accessories fell 19% to $131 million. Category includes Activision's "Skylanders" toys, along with point cards, headphones.

Overall, the industry saw sales declines of 25% to $495 million.

"Overall declines are stemming from the performance of games launched prior to April," said NPD Group's Liam Callahan.