Add kangaroos. Yeah, we'll set it in Australia and when the guy says "Who's there?" it's not really the guard he sees but a kangaroo.
Or here's a plan. The ghost is really Claudius dressed up, who is trying to goad Hamlet into trying to assassinate him, thus giving him a pretext for having Hamlet put to death legally. Instead of the ghost leaving the stage on the word "Adieu", it is Hamlet who leaves, so Claudius can take off the sheet with two holes for eyes and laugh like Snidely Whiplash.
Or not.
If you would prefer something less rididulous, use your own imagination. I'm sure you could come up with something better.
Hamlet - questioning the meaning of life
Which time? In Act 1 he was waiting for the ghost to show up, hoping he would talk to him. In Act 3, Hamlet is haranguing his mother when the ghost turns up (well at least Hamlet sees and hears him).
Hamlet, Act 3, Scene 1.
The Ghost, in Hamlet, Act 1 Scene 5
In the exposition of Act 1 Scene 5 in Hamlet, two characters speak: the ghost of King Hamlet and Prince Hamlet. The ghost reveals the circumstances of his death to Hamlet, setting the tone for the rest of the play.
act 3 scene 1 lines 147-148 :)
no
In Act 1 Scene 4
Hamlet. See http://www.opensourceshakespeare.org/views/plays/play_view.php?WorkID=hamlet&Act=1&Scene=1&Scope=scene
These are the first six words of a speech Hamlet makes in Act 3 Scene 1 of the play.
She's the same person she is in the other four acts of the play--Hamlet's mother.
Horatio plans to go meet Hamlet at Elsinore, which he does in Act 1 Scene 2. Horatio plans to meet Hamlet on the battlements, which he does in Act I Scene 4. Horatio plans to meet Hamlet at the play, and does in Act 3 Scene 2. Horatio has no plans to meet Hamlet in England.