This classic puzzle game is still good on Game Boy. But there are structural flaws that prevent it from being an instant classic. The obvious one is the lack of color, in a game based on colors. Hues are replaced with different enough symbols, but that’s not ideal. The other flaw is the absence of a 2 player mode, and a lack of game modes overall. Still the game is fun due to its great concept! And the cuteness of the original arcade version is still there.