How do I make a door in a top down shooter?

im trying to make a door in my top down shooter. im not sure how to do it. pls help?

there's many ways to do it, and depends of what you're calling "a door" in your gameplay.

you can basically do it with a sprite with a solid behavior (to block movement and bullets) and a rotation behavior (to open / close) with events to make it open close and open on demand (at sprite collision ? when a key is pressed ? that's up to you)