This paper articulated the position, based on literature research findings as well as experiences and considerations, of the authors regarding the role of exergames in stealth cognitive assessment. The conclusions presented therein are based on a long and lasting experience of design, implementation and piloting trials with seniors over the last six years. They are also supported by literature findings concerning exergames' engagement, acceptance, perceived usefulness and ease of use. The authors express a positive outlook regarding the role of daily exergaming programs regarding their capacities in stealth assessment. Furthermore, it is postulated that additional research efforts should focus on providing even more concrete, evidence based arguments for convincing researchers and clinicians of the potential clinical value of exergames in terms of cognitive assessment.