Adventures of Lolo 2 was released in 1990 by HAL Corporation for the NES. It is the sequel to Adventures of Lolo and is a puzzle game, as was the original. In fact, the gameplay is so similar to its predecessor, that this game was not very well received and the series' popularity fell as a result of its repetitive level structure, monster design, and gameplay.
A Japanese version of this game was also released under the name of Adventures of Lolo, because the original was never released overseas. This version received a better response than its North American counterpart because it featured a different level of difficulty and more varied stages.
The game did offer a few unique gameplay elements, though. Both versions of the game contained 50 different puzzle rooms, and a final fight with King Egger at the completion of these levels. This was the first game in which the player could fight the King directly. Adventures of Lolo 2 also featured 4 hidden Pro puzzle rooms, which were notably harder rooms for players wishing to further challenge themselves. Also, the last five levels of this game take place in a castle in the sky which is illustrated by a different tile-set than that used for the previous 45 levels.
Ultimately, these small improvements were not enough to differentiate the gameplay of this game from that of its predecessor, though.