/usr/share/games/trackballs/levels/fourSeasons.set is in trackballs-data 1.2.4-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | (name (_ "The Four Seasons"))
(first-level-file "fourSeasons_1")
(first-level-name (_ "Winter"))
(desc1 (_ "Play all year round! First comes the winter, then comes the..."))
|