If you're expecting more of the original Gimmick! in this game, you probably will be a little disappointed.
This is more of a puzzle game, stopping screen by screen to solve puzzles for hours on end, rather than the flowing stages found in the original NES game.

I'm guessing it was designed this way to pad extra play time on to what should have been a shorter game. Can't blame them though. We all know how people are these days. If it's too short, they complain. The target audience for the NES Gimmick! suffer though.

I would rather have a shorter game focused around clever and difficult star rides. This game has that, don't get me wrong, but it's just not the focus. It's a puzzle game first, Gimmick! second. I would rather have a highly replayable short game.

The things I don't really care about, graphics and music, are fine. Music is really mild though, and it ends up just increasing the boredom you're experiencing by the 4th world after puzzle fatigue.