How do I make a shoot em up up scroller?

I want to know how to make a shoot em up where the screen continously scrolls upwards, and enemies that have a specific route (e.g) a group of planes that slowly glide towards a corner of the screen

That's a very broad request... it's usually better if you have at least some aspect of your game done - than ask about specific things you can't get to function the way you want. Asking someone to explain how to make an entire game is like asking your mechanic for step by step instructions on how to diagnose and fix your car.

Nobody will help if you do that.

Have you made anything at all so far?

~Sol

There are some tutorials you can look at

like https://www.scirra.com/tutorials/422/bu ... o-tutorial

this is a side scrolling, but it's exactly the same with top-down

yeah. I've made the basic map. It's just the camera that doesnt move.

Several ways to implement, depending on your exact project.

Check the different implementations available in the How do I FAQ section Scrolling / Camera.

i've managed to fix the camera but it turns out that the camera covers an area that is too small. is there any way to increase this?

Changing your 'window size' property will allow your camera to see more. You can access this by clicking on your top level project file in the project window.

You should note that increasing the window size may also affect performance as the window size gets bigger (more for the system to draw/process at any one time).

You could also scale all your sprites down so more fit on the screen.

thanks/ i'll try it out.