Fun little dungeon delver, has a lot of potential! I can see it being expanded with bosses, more enemy types, weapons... I do think that the rooms are too big right now, since they don't have much in them and seem to only serve to use up some time on the clock. If they had recognizable features it'd be cool to be able to memorize a path back to the beginning when snatching the artifact. I like how the countdown doesn't only appear when you take the artifact, since there's a bit of a risk-reward to going through the rooms quickly in order to save time.