Amazon's Wii Gold Box deals return!

Out of nowhere, Amazon has kicked off another day devoted to Wii bargains! Similar to February's series of Gold Box deals, the online retailer has put up a bargain for the day -- Mario & Sonic at the Olympic Games for $29.99.

Four additional "Lightning Deals" will also be posted at 6:00 AM, 10:00 AM, 2:00 PM, and 6:00 PM PST, each sale limited to its four-hour block. Most of these games sell out within minutes, though, so you'll want to start refreshing the Gold Box page around those times.

Amazon has put up clues for the mystery Lightning Deals; we've accompanied them with our guesses!

• 6:00 AM: "The hunt is on for big game." - Cabela's Big Game Hunter

• 10:00 AM: "Wii will, Wii will rock you!" - Guitar Hero 3

• 2:00 PM: "Muster your squad to fight the terrorist threat." - Ghost Squad

• 6:00 PM: "Get your hardball fix without worrying about rainouts." - MLB Power Pros/MLB 2k8/The Bigs

[Via CAG]