It is a different game concept, very interesting, by the way but, I am a bit disappointed with this game.
In the past, when I saw images from this kind of games in the magazines, I thought these were some kind worlds made of vector graphics, where you could move freely.
Now I found that vector graphics are a bit fake, as movement is limited to horizontal and vertical scroll 
Anyway, seeing a game of this kind could be interesting in MSX.