Please be as specific as possible when letting us know what is missing or incorrect. For example, say "this game's trophy difficulty should be 8/10", with a link to a website corroborating this difficulty estimate (if possible), not "this game's trophy difficulty is wrong".
Knack 2 Free Demo does not have any trophies. This is because it is a demo and/or soundtrack, neither of which typically get trophy lists. The full (i.e., paid) version of the game likely has a trophy list.
Playable on: PS4 only Enjoy this free Knack 2 demo. Play solo or tag-team with a friend through seamless couch co-op and check out Knack's new moves!