ESRB updates (5/23)

Mahjong Cub3D (3DS) – E
Extreme Hangman 2 (DSi) – E10+
Wipeout 2 (DS) – E
Cave Story 3D (3DS) – E10+
Sudoku Premier Edition (3DS) – E
Disney Phineas and Ferb: Across the 2nd Dimension (DS) – E