"Bulldoze! - Schneeräumer im Kampf" is a Tron-like game for two players written in BASIC in 1984 by Bernhard Kirsch for the Commodore C64. The game ends after six rounds. It was published in April 1984 as a type-in listing in "Homecomputer" magazine by Roeske Verlag. You can find it on pages 25 to 28 of issue 04/1984.
These are some sample screens.
Interestingly, there is also a Dutch version named "Bulldoze! - Sneeruimer in Strijd", which was released by Courbois Software.