Any idea if Guwange or After Burner Climax is on sale?
No dice. It looks to be mostly Games On Demand and DLC content, not many Arcade titles unfortunately.
Here is a list of what's for sale:
Spider-Man 3 - $14.99 (Save $15)
Spider-Man: Dimensions - $14.99 (Save $15)
Just Cause 2 - $9.99 (Save $15)
Assassin's Creed III - $39.99 (Save $20)
FIFA 13 - $39.99 (Save $20)
Hitman Absolution - $19.99 (Save $10)
Hitman: Blood Money - $9.99 (Save $20)
Walking Dead Episode 1 - FREE
Walking Dead Episodes 2-5 - 200 MSP each
Dead Rising 2 - $14.99 (Save $15)
Dead Rising 2: Case Zero - 160 MSP (Save 480 MSP)
Dead Rising 2: Case West - 320 MSP (Save 480 MSP)
Dead Rising 2 Skills Pack: Ninja - 80 MSP (Save 80 MSP)
Dead Rising 2 Skills Pack: Sports Fan - 80 MSP (Save 80 MSP)
Dead Rising 2 Skills Pack: Soldier - 80 MSP (Save 80 MSP)
Dead Rising 2 Skills Pack: Psycho - 80 MSP (Save 80 MSP)
Skyrim: Dragonborn - 800 MSP (Save 800 MSP)
Skyrim: Dawnguard - 800 MSP (Save 800 MSP)
Skyrim: Hearthfire - 200 MSP (Save 200 MSP)
Max Payne 3: Rockstar Pass - 1200 MSP (Save 2400 MSP)
Max Payne 3: Local Justice Pack - 320 MSP (Save 320 MSP)
Max Payne 3: Painful Memories Pack - 400 MSP (Save 400 MSP)
Max Payne 3: Hostage - 400 MSP (Save 400 MSP)
Max Payne 3: Deathmatch - 400 MSP (Save 400 MSP)
Resident Evil 6: Survivors Game Mode - 160 MSP (Save 160 MSP)
Resident Evil 6: Onslaught Game Mode - 160 MSP (Save 160 MSP)
Resident Evil 6: Predator Game Mode - 160 MSP (Save 160 MSP)
Resident Evil 6: Echo Six Expansion Pack 1 - 400 MSP (Save 400 MSP)
Resident Evil 6: Echo Six Expansion Pack 2 - 400 MSP (Save 400 MSP)
Resident Evil 6: 3-Mode Pack - 360 MSP (Save 360 MSP)
Super Street Fighter IV Arcade Edition - 600 MSP (Save 600 MSP)
Super Street Fighter IV Arcade Edition: Arcade Challengers Pack - 160 MSP (Save 160 MSP)
Super Street Fighter IV Arcade Edition: Ultra Costumes - 720 MSP (Save 720 MSP)
LA Noire - $14.99 (Save $15)
LA Noire: Rockstar Pass - 480 MSP (Save 480 MSP)
LA Noire: Reefer Madness Vice Case - 160 MSP (Save 160 MSP)
LA Noire: A Slip of the Tongue Traffic Case - 160 MSP (Save 160 MSP)
LA Noire: The Naked City Vice Case - 160 MSP (Save 160 MSP)
LA Noire: Nicholson Electroplating Arson Case - 160 MSP (Save 160 MSP)
LA Noire: Badge Pursuit Challenge & Button Man Suit - 80 MSP (Save 80 MSP)
Midnight Club: LA - $9.99 (Save $5)
Midnight Club: LA: South Central Ultimate Content Pack - 480 MSP (Save 520 MSP)
Midnight Club: LA: South Central Vehicle Pack 1 - 120 MSP (Save 120 MSP)
Midnight Club: LA: South Central Vehicle Pack 2 - 120 MSP (Save 120 MSP)
Midnight Club: LA: South Central Premium Upgrade - 400 MSP (Save 400 MSP)
There are also several deals on both Transformers: War for Cybertron and Fall of Cybertron in the Deal of the Week section.