Xbox Live: "Action Arcade" Savings, Blacklight Confirmed and Fight Night Round 4 on Demand

This week's Xbox Live "Deal of the Week" discounts a set of action-focused Arcade titles, most down 50% from their original price. The Action Arcade promo (via MajorNelson) includes:

• Mega Man 10 - 400MS Points (50% off from 800MS Points / $10)

• Afterburner Climax - 400MS Points (50% off from 800MS Points / $10)

• Death by Cube - 400MS Points (50% off from 800MS Points / $10)

• Scrap Metal - 800MS Points (33% off from 1200MS Points / $15)

On its official Facebook page, Zombie Studios revealed its upcoming online-only shooter Blacklight: Tango Down will release this week for 1200MS Points ($15). Last week the company could not confirm a listing by Major Nelson that put its shooter in the July 7 lineup.Also hitting the Xbox Live Arcade this week is the remade adventure classic Monkey Island 2 Special Edition: LeChuck's Revenge for 800 MS points ($10).

Added to the Games on Demand service this week is the "sweet science" simulator Fight Night Round 4, pricing and availability varies based on region.

[Update: 10:19am] As reader Masem points out, this week Xbox Live is discounting a slew of music DLC for the Rock Band, Guitar Hero and Lips franchises. The entire list is available on Xbox.com.