This is just kind of an iffy platformer. Playing as a tribble does sound fun, but would be better with a clear duplication/"procreation" mechanic. Mainly, eating food (not gems) and utilizing that to duplicate yourself within, say, a 3D starship environment. Then the goal is to survive as people try to shoot you down or send in glommers (switching to another spawned tribble as you are killed).
The reverse, a more traditional "fight the grey goo" battle from the Starfleet/Klingon/Whatever side would be equally fun. Especially if you can unlock or improvise techniques to contain and eradicate them.
Playing as one tribble doesn't make sense, as tribbles are supposed to be weak with their primary attribute being procreation, something that doesn't show up in the trailer or gameplay videos. Drexler's involvement does intrigue me, although it may be limited to starship design.