Adventures of Lolo (NES / Famicom)

The Lolo series are probably some of the most charming puzzle games that I've ever played.  You play as a spherical dragon dude trying to save his girlfriend by unlocking one room after the next in a massive castle.  With a cute aesthetic, interesting puzzles, and a catchy theme song, it's hard not to like the Adventures of Lolo.  In a time where puzzle games are dominated by cold, sterile colors and shapes, it makes me wish there were more Lolo games today.