The exception is the Killer Satellites, which start appearing after the third asteroid belt at the beginning of level four with no warning at all, although the manual stated they appeared at the end of each level, starting with level 4.
The exception is the Killer Satellites. The Killer Satellites start appearing after the third asteroid belt at the beginning of level four with no warning at all, although the manual stated they appeared at the end of each level. This was starting with level 4.