Well im the softmore at my school who has been programming in Basic for the past few years and placing games onto other peoples calcs, yet, none of my games have bullets...
But back to the topic... (Help with Bullets now...)

And have a variable to space the bullets if you have more than one at a time
I have 2 vars that check the bullet. The first one is turned on when the bullet is fired. I have that set the coords and direction. The second one is activated (and first deactivated) afterward which, if 1, makes the bullet move in the direction. Thats my way.

Coded example coming up

For a simple 1 bullet, here is what I would use. I actually could just use one bullet check var, that would be easier

Repeat getkey(15)
If getkey(9)
!If F
. F is a bullet check. It equals 1  when the bullet is being fired, 0 when it isnt.

X->A
Y->B
R->C
.R is if the player is facing left or right (right is 1, left is 0 here)
.Save that so the bullet wont go backwards
.X and Y are the player's coordnates, thats where the bullet starts
1->F
.When F is 1, that makes it so it wont go through this again.
End
End
If F
.So if F is 1, that means to start moving the bullet.
If C
A++
Else
A--
End
.That checks if it is going left or right.
PtOn(A,B,Pic1)
.Put it on the screen with whatever pic your bullet is
End
If A>96 or (A+8<0)
.If the bullet is outside the screen
0->F
.When F is zero, the bullet stops moving and another bullet can be shot
99->A
.Putting the Coords outside of the screen so it wont interfere
End
End

I dont think I'm forgetting anything other than bullet to enemy collision detects.
Since I didn't put a variable for bullet spacing, this code will make your bullets fire really fast if you're at the edge of the screen, however.

Here:

Pick a variable for your for loops. I used V.
Pick L1, L2, L3 etc. I used L5.

Im taking this from my game

.Outside the main loop
For(V,0,5)
.I put 5 there to say what the max possible bullets on the screen would be.
0->{V*4+L5}
End
.That sets the bullet check to zero.
25->S->T
.S and T will be what spaces the bullets. T will gain 1 every time the loop finishes and when it reaches S, which is set to 25, a bullet will be ready to be fired.
Repeat getkey(15)
.Inside the main loop somewhere
If getKey(54)
For(V,0,5)
If T=S
.Checks if T=S so that the bullets are spaced out
!If {V*4+L5}
.If the bullet check is 0, set it to 1
1->{V*4+L5}
.Turn T back to 0 and it will have to go back up to 25 (T) to fire again
0->T
.Exits this loop now since we already have our bullet
Goto X
End
End
End
End
Lbl X
.Other stuff
For(V,0,5)
If {V*4+L5}=1
.If bullet check = 1
.Set the coordnates of the player to the bullet
X->{V*4+L5+1}
Y->{V*4+L5+2}
.Display
Pt-On({V*4+L5+1},{V*4+L5+2},Pic2
.Turn on the bullet check to 2 now.
2->{V*4+L5}
.You should have a variable that tells if the character is left or right. Save that to the bullet like here
R->{V*4+L5+3}
End
End
For(V,0,I)
If {V*4+L5}=2
.Checks if the bullet check is 2...
If {V*4+L5+3}
.If facing right..
{V*4+L5+1}+2->{V*4+L5+1}
Else
.If its not,
{V*4+L5+1}-2->{V*4+L5+1}
End
.Display
Pt-On({V*4+L5+1},{V*4+L5+2},Pic2)
End
End
For(V,0,I)
If {V*4+L5+1}>90
.If the bullet is off the screen (Works for both left and right side)
.Set the bullet checksback to zero and put the coordnates off the screen to not interfere
0->{V*4+L5}+100->{V*5+L5+1}->{V*5+L5+2}
Return
End
End
.Make T move up to S for the bullet spacing
If T<S
T++
End

Thats for just the bullets. I also have collision detects if you need.
To clear up the bullet check, this is what it does.

When
{V*5+L5}=0
That means a new bullet is ready to be shot

When
{V*4+L5}=1
That means the bullet's coordinates and left/right need to be set.

When
{V*4+L5}=2
That means to move the bullet.


Whoo... Done!

Its probably enough to be its own tutorial.

In fact, I just made it one.
Why not?

The easy way would just to do a pxl-test.

Whoops.

If pxl-Test(x,y+8) or (pxl-Test(x+8,y+8))

I think that will check, right?
I need to start using pxl tests
I'll use them if I finish that jump game