In a week bursting with new releases, Nintendo's
Super Mario Galaxy 2 was the clear champion on the Japanese sales charts, beating out four other new releases on the top ten, according to tracking firm Media Create.
The Wii game topped the Japanese retail sales chart for the week that ended May 30, whose top four entries were all newly-launched games. Its 340,000 units dwarfed the performance of the second-place game, Banpresto's
Super Robot Taisen OG Saga: Masou Kishin - The Lord of Elemental.
Thanks in part to several new Nintendo DS releases, more than half of the games on the chart are exclusive to Nintendo platforms. Those new games also helped displace Capcom's
Lost Planet 2, whose PlayStation 3 version fell from the top slot down to number six. Its Xbox 360 version dropped off the top ten, sliding from number five to number 19.
Meanwhile, Remedy's
Alan Wake on Xbox 360 just barely failed to make the top ten, instead coming in at number 11, with no unit figures given.
Square Enix and TOSE's
Dragon Quest Monsters: Joker 2 fell from second place to fifth place, selling 34,000 units. Kojima Productions and Konami's
Metal Gear Solid: Peace Walker sold 25,000 units and dropped down three places from number four to number seven.
Two weeks ago, the games completed a three week streak leading the charts at numbers one and two.
And Cave's Xbox 360-only
Death Smiles IIX, an enhanced edition of its shoot-em-up
Death Smiles II (and not the eighth entry in the series, as the Roman numeral designation would arguably suggest), managed to just make it into the top ten with 16,000 units sold.
Below are Media Create's weekly Japanese charts for the week ended May 30, 2010:
| LW | TW | Title | Developer | Publisher | Platform | Weekly Sales |
| NEW | 1 | Super Mario Galaxy 2 | Nintendo EAD Tokyo | Nintendo | Wii | 340,000 |
| NEW | 2 | Super Robot Taisen OG Saga: Masou Kishin - The Lord of Elemental | Banpresto | Namco Bandai | NDS | 81,000 |
| NEW | 3 | Soccer Tsuku DS: World Challenge 2010 | Sega | Sega | NDS | 50,000 |
| NEW | 4 | Medabots DS: Kabuto Version and Kuwagata Version | Imagineer | Rocket Company | NDS | 50,000 |
| 2 | 5 | Dragon Quest Monsters: Joker 2 | TOSE | Square Enix | NDS | 34,000 |
| 1 | 6 | Lost Planet 2 | Capcom | Capcom | PS3 | 34,000 |
| 4 | 7 | Metal Gear Solid: Peace Walker | Kojima Productions | Konami | PSP | 25,000 |
| 3 | 8 | World Soccer Winning Eleven 2010: Blue Samurai Challenge | Konami | Konami | PS3 | 23,000 |
| 8 | 9 | New Super Mario Bros. Wii | Nintendo EAD | Nintendo | Wii | 16,000 |
| NEW | 10 | Death Smiles IIX | Cave | Cave | Xbox 360 | 16,000 |
