is there a page in the wiki for making a high score system or can someone tell me?. i just want to make it as simple as the one in flappy bird. i know it has suttin to do with global variables but idk how to save the score.
Just use Storage actions 
oh thanks. imma use that.
but what if the layer gets a new high score will that change automatically.
will it work on preview
There was a huge thread about that in this section of the forum. Try to find it.
Basically, what you need is:
- Collect the data and store it in variables.
- Draw the score display.
- Refresh the score display when needed.
- Save the score data to a file.
- Read the score data from that file, when needed.
GD have native functions to do all that you need to display and keep a score registry.
hello again 
i did the first two things. idk what you mean by the third thing.
the two last things, if you saw in the gameplay scene event 35 n highscore scene event 1 i tried to do it but when i refresh the webpage it will go back to 0