Moving Box Shooter

One day, I opened Godot and thought, 'Jeez, I'm so tired of having ideas but then never doing anything about them!' So I got myself an idea: I will make a box. I will... make it move! And it will keep moving until it hits a wall, like those mini-games some games have. But here's the twist, it'll... hmm..... what if it were a shooter..? And then, a month and a half later, Moving Box Shooter was com…