Puzzled for Game Boy Color

This is a "no pressure" game. You just work puzzles, like on the table at home. These are brain teaser puzzles. You have to get all the pieces put in a certain way to win the puzzle, and it really helps you to exercise your concentration abilities. There are 150 puzzles, and a cute little blue blob, with pink eye lids, to play with. I am challenged, but not overwhelmed by this game