"We want to play well," the 34-year-old said after a 20-2 friendly victory over amateur club Rottach-Egern on Wednesday. "We lost the DFB Cup final and we'll do everything we can to win on Sunday. Every title counts and we want to take it home."
The Dutchman, who is going into his tenth season at the club after recently penning a one-year contract extension, has won the Supercup four times previously (2010, 2012, 2016, 2017) and is in confident mood ahead of this year's edition.
"You can lay the foundations for the entire campaign in pre-season," he said. "It's very important. We've got five weeks of training behind as now and we've worked very well, so hopefully that'll show over the next few weeks. Want to have a good start to the season."
Equally important to Robben has been remaining injury free, after recovering from a persistent adductor complaint over the summer: "I'm very happy not to have missed a single minute of training. It's always good and is a big objective of mine. My ambition never goes away."
Watch: Robben's top 5 Bundesliga goals
In addition to eyeing the Supercup trophy, that ambition includes retaining the Bundesliga crown and winning "one more title than we did last season".