The player controls a bouncing ball and collects coins from each level before proceeding to a level's exit. Small spikes, named Deathstars, are to be avoided, as any collision results in a life being lost. The game also features "blinking" platforms, which can only be used for bouncing when visible, requiring careful timing from the player.
Various power-ups can be collected, including extra time, temporary invulnerability, and a slow motion mode. The main power-up item will cycle between the various power-ups available, and its sprite updates accordingly. Most levels require the player to determine the appropriate power-ups to be collected to progress through the level.
A sequel, Turbulence, set on a rotating sphere, was released for the Spectrum in 1993.
- Review of the Spectrum version in Your Sinclair
- Review of the SAM Coupé version in Your Sinclair
- Astroball at SpectrumComputing.co.uk
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