A fun, but difficult Commodore 16-original. The only problem with this kind of games is the 'why play, when..'.
Why play this, when Cosmic Causeway (C64) exists? Why play Cosmic Causeway (C64), when Yoomp! (Atari) exists?
It's basically the same thing, but why play the 'lesser version', when versions with more features, faster, smoother and more graphics exists? I think Yoomp! is the best of these games, then Cosmic Causeway, then the various versions of Trailblazer.
Still, it's a fun, little game - these games just make me a bit sad, because they are basically obsolete beyond mere curiosity.