Easily by staying out of the hole in the first place and anyways they haven't had a buried alive match in years.
The way you escape a buried alive match is like this. When you get dropped into the hole. There is a door on both sides of the grave and when you get through the hole your supposed to lose the match. Every match like that is planned by the WWE before it happens because it's fake. If you should lose the match you go through the door when your time is up to fight and there is a path under the ring. You go in there and walk under ground and wait under the ring. Down there they have water and food and a walkie talkie so they can come out when the WWE arena is cleared with all the fans so they can't see them get out.
They have a trap door that allows an easy exit and a simple way to make an intresting match more intresting and a second mini trapdoor allowed Mark Calaway (Undertaker) to stick his hand up.
Power
I believe the first appearance by a casket in a WWE game is in SmackDown vs Raw 2006 in the form of Buried Alive match, so the answer is no.
Yes
I believe there is no such thing as Lego WWE video game. Either you made that up or someone really tricked you.
No there is no DQ or count out in triple threat matches
Yes it's illegal to kill on purpose in wrestling
Lionel Messi
i see undertaker vs Kane in buried alive match for the world heavywieght champion undertaker almost win but nxt come to fight him right now he is buried alive but next year he will return to wwe you know what you he are deadman he never give up like that he will return. rest in peace
Smackdown Vs. Raw 2009 added three matches: The Gauntlet Match, the Inferno Match, and the Elimination Chamber match. As well as that, they took out the Buried Alive match.
Power
He is buried alive by his brother Kane with help of Nexus
The latest match was at bragging rights 2010 so possibly
The one at bragging right 2010 was won by Kane.
I believe you may be refering to the famous "Buried alive matches". Of corse the match is all "kayfabe" which means it's not real. The superstars can't get buried alive they would die of suffication. But if you mean being buried alive for real after a few minutes you'll die.
Not Since Undertaker vs. Mr. McMahon at Survivor Series 2003
They stop doing matches like dat since undertaker lost in it
No. There will be no casket matches in the WWE 2015.