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"April 2011 represents the first month that new physical retail sales of content showed growth in both units and dollars since November of last year," writes the NPD Group’s Anita Frazier in her analysis of U.S. software sales for the month of April.
Frazier adds that five games sold more than 250,000 units in April 2011, as opposed to just two games last April.
The highest-selling game for the month was Mortal Kombat, which Frazier reports sold "just under 900k units" during its first month on the market. For reference, Street Fighter IV sold 849,000 units in its first month, when it debuted in February 2009.
The top-10 software chart for the month of April in the U.S. is as follows:
| Rank | Title | System | Publisher |
| 01. | Mortal Kombat | PS3, 360 | Warner Bros. |
| 02. | Portal 2 | PS3, 360, PC | Valve |
| 03. | Lego Star Wars III: The Clone Wars | PS3, 360, PC, 3DS, Wii, DS | Lucasarts |
| 04. | Call of Duty: Black Ops | PS3, 360, PC, Wii, DS | Activision Blizzard |
| 05. | Tiger Woods PGA Tour 12: The Masters | PS3, 360, Wii | Electronic Arts |
| 06. | Crysis 2 | PS3, 360, PC | Electronic Arts |
| 07. | Just Dance 2 | Wii | Ubisoft |
| 08. | Michael Jackson: The Experience | PS3, 360, Wii, DS, PSP | Ubisoft |
| 09. | Pokémon White | DS | Nintendo |
| 10. | NBA 2K11 | PS3, 360, PC, Wii, PSP, PS2 | Take Two |
