I've just encountered a bug. Entered Final Frontier with 1 full set of artifacts, game goes through its normal routine of showing them, TPA pulls back to the launcher camera view for a few seconds & I make a Beta Quadrant ramp shot with the first ball off the left ramp, then TPA reverts to camera angle 1, flippers go dead & Final Frontier music continues after all 5 balls drain. Game ROM is frozen, I'm pretty sure it's TPA carrying on the music, but I've been staring at this thing for 5 minutes that's still in Final Frontier with 0 balls in play.