Yeah, was just about to ask what game these .uni files are from. There looks to be "ART2" headers here, with some kind of data following (Maybe image data? Maybe compressed? Maybe not).
EDIT: Does this look remotely close to an image from the game? The ART2 headers seem to precede 256-color image data of some sort.
EDIT: Does this look remotely close to an image from the game? The ART2 headers seem to precede 256-color image data of some sort.