Scratch

Try having a new background (as well as any you already have) which is black and says
(your title)
press space
this should be your first background (i've called it title screen)
Then try something on the background like:
[sctachblocks]
when gf clicked
switch to background [title screen v]
broadcast [hide v]
wait until <key [space v] pressed?>
broadcast [start v]
[/scratchblocks]
then for the sprites:

when i recieve [hide v]
hide

and

when i recieve [start v]
show

then add your code onto the end of the last one

What I do is make a BG(Back Ground) for the menu on the "stage".

Then, once my intro(optional, of course,) finishes it broadcasts "program_Start".

Then for my stage i put:

 
when i receive [program_Start v]
switch to background [menu_ v]

Then i make my buttons for play or quit or whatever else the game requires and put this script: (The "play" button will be used in this example,)

 
when i receive [program_Start v]
go to x (0) y (0)
show

Then put anything you want special like maybe having it slowly change size and then shrink again.

Then you put:

 
when play_Button clicked
broadcast [play_ v]
hide

Hope that helps,

CAA14