I want to make a flappy bird game! what tutorial should I follow?

I have some simple code for you to make the perfect flappy bird game

when green flag clicked
set [ Y vel] to [0]
go to x: (-100) y: (0)
forever
change [ Y vel] by ((Y vel) * (-0.1))
change y by (Y vel)
change [ Y vel] by (-0.5)
end

when green flag clicked
forever
if <<key [ space] pressed?>> then
change [ Y vel] by (20)
wait (0.5) secs
end
end

I don't know if this works but it is based off code I use

You can change the gravity by changing the -0.5 in the change Y vel code at the bottom
You can change the jump strength by changing the 20 in the space pressed one

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Try my winter game https://scratch.mit.edu/projects/1239718418/editor

thank you so much! Is there any way you could send me the sb3 file?

I shared it you can either export it or remix it this is it
https://scratch.mit.edu/projects/1239751735/
idk how to send the file us new scratchers has to help each other

thanks btw

Here is simple Wall code

when green flag clicked
hide

when I start as a clone
show
go to x: (200) y: (pick random (-200) to (200))
repeat (40)
move (-12) steps
end
delete this clone

when green flag clicked
forever
wait (2.5) secs
create clone of [ myself]
end

put this in the player

when green flag clicked
forever
if <touching [ wall] ?> then
stop [ all]
end
end

make the wall 2 squares

are you able to add it to the game? I don't know how to make some of the blocks that you have.

there is no feature to have another person to edit your project

but the codes you probably don't know is

stop [ v]
create clone of [ v]

<touching [ v] ?>

It's not possible

or you can just go to https://scratch.mit.edu/projects/1239917511/ it's more complicated but I put comments showing what each script does