A C64 Port is the name given to a game which has some content which has been taken directly from the C64 with very little changes. Normally the content is graphics, and normally from C64's lower resolution mode, because the C64 has some modes which are similar to the Amstrad's. This practice is normally not very common because the C64 has a different CPU so it could not share game code with the Amstrad.
Examples where C64 graphics were used on the Amstrad:
- Predator (title screen)
- Flimbo's Quest (title screen and game graphics)