What Greek dialects sound Italian?

Lara Novakov and Konstantinos Konstantinides are both right.

The dialects of the Ionian islands have had the longest exposure to Italian (from 1200 through to 1800), and has substantial Italian vocabulary. This performance of Petegola from Corfu (Mardi Gras skits) may exaggerate the intonation as vaudeville, but exaggerated vaudeville is probably the closest you’re going to get nowadays to dialect intonation; and it sounds a little Italian to me:

Why yes, petegola is Venetian, for ‘gossip’.

Of course, nothing sounds more Italian than the Greek actually spoken in Salento and Calabria: it really is Greek as rendered by the Mario Bros.