Alien Syndrome/Versions

Commodore 64/128
Ported by Ace. This appears to be the sole port from this company.

Of note, the screen-scrolling is substandard, which is a low-speed scroll that allows pressing against the edge of the screen in normal play, which is dangerous against
 * Screen-scrolling speed is reduced, allowing you to press against the edge of the screen.

This port shows the name of the end-level boss for the first six stages
 * 1) Asophy
 * 2) Hugger
 * 3) Tacapy
 * 4) Minnow
 * 5) Yocotie
 * 6) Minenor