Not many games capture the feeling of "80s cyberspace" quite like
Tasty Static. A remake of the classic
Kosmonaut,
Tasty Static is a love-song to the days of old. The days of really, really hard games that focus around super-tight controls and difficult movement, as well as the days of bright, geometrically simplistic objects. It's great, both as a remake and as a game in its own right, and at only 16 MB and the low price of free, it's definitely worth playing.
Tasty Static revolves around making it to the end of a long, puzzle-like track through use of speed and jumping. Movements must be carefully calculated, as you can't doing things like jump sideways, and speed plays a major role into determining where you can jump and if you will die. There's more to the game than these basics, thanks to the extras section, but you'll find yourself returning to the tracks over and over again.