And so it begins. Today is the annual celebration fraught with clever (and not-so-clever) gags -- the day of fools and fooling, as it were -- and Minecraft dev Mojang is clearly taking the event very seriously. Beyond adding actual stuff in the game's beta update 1.4, the developer has launched the new (totally fake) "Minecraft Store," which features a collection of in-game items for purchase.If the outrageous prices weren't enough of a tip-off -- $494 for the "Response from Support" item? -- the screaming Velociraptor from Mojang's match-three classic, BeDino Quest , which runs across the screen when you attempt to check out, should serve as enough of a heads-up. Unfortunately, a few sad sacks may still end up clicking away in an effort to snap up a $155 "Secret Griefer Identity" or what have you -- and to those folks, we wish you luck with the rest of today.