Another picture of a CD-i mouse. These were largely used for "professional" uses (business and educational software), but could also be used for playing games (they were compatible with nearly all CD-i software, but not all software was "suitable" for it).
<a href="//commons.wikimedia.org/wiki/User:Matthew_Paul_Argall" title="User:Matthew Paul Argall">Matthew Paul Argall</a>
<span class="int-own-work" lang="en">Own work</span>