Starting on midnight Sunday four Xbox Live Arcade titles will be getting a brief 50% price cut. Small Arms and Zuma Deluxe, normally 800 Microsoft Points, are getting reduced to 400 and coin-op classics Dig Dug and Gauntlet are going down from 400 to 200.

The price reduction will last through Monday.

Microsoft has had price reductions and these kind of limited-time sales before, but usually they have been reserved for game-specific downloadable content. This is the first time they’ve extended price fluctuations to full XBLA titles, although the announcement does vaguely hint that this may be a semi-regular occurrence.