The sky changes color when the player reaches certain point levels: Black (starting); Blue (1,000-4,999); Purple (5,000-19,999); Turquoise (20,000-49,999); Gray (50,000-99,999); Black (100,000+)
A cut-down version of Astrosmash was released for the Atari 2600 console under Mattel's "M Network" label as Astroblast. Telegames later re-published the game under the Telegames brand.
Astrosmash was originally conceived when a game called Meteor!, an Asteroids clone, didn't fill up an entire cartridge. The extra room was used to create a variation of the game called Avalanche!. At the last minute, Mattel's lawyers had Meteor! cancelled because it was too similar to Asteroids and they didn't want a lawsuit. Programmer John Sohl simply put a branch around the opening-screen menu straight into the Avalanche! variation (to prevent introducing bugs, since Meteor! and Avalanche! shared the same graphics and sounds), and the game was released under the name Astrosmash. In very rare instances, if the console's reset button is pressed rapidly, the program will glitch, starting the game in the blocked-off Meteor! mode instead