The game involves guiding Hello Kitty into every item on a given level, using different types of bricks to manipulate her surroundings, thus allowing her to get every item. Often, the player must build steps for Hello Kitty out of Tetris-style falling bricks. Also, some of Hello Kitty's friends appear on levels, causing the bricks to move in undesirable ways. Although the PlayStation is geared for a younger audience, the Game Boy Color version suffers from sluggish controls, upping the difficulty level. Source: Wikipedia, "Hello Kitty's Cube Frenzy", available under the CC-BY-SA License.