Cardiaxx is a science-fiction scrolling shooter video game for the Commodore Amiga. It was developed by Eclipse Design. Public release in 1991. The Atari ST version was never released.
The game features a spaceship as it flies through various levels of varying graphic styles. Each level has a boss at the end, and each level is separated by a sub-level of avoiding asteroids while the next level loads from the floppy disk.
Source: Wikipedia, "Cardiaxx," available under the CC-BY-SA License.