Pretty cool! Simple but polished. Mind sharing how it's done? Is it in 3d space or 2d?
It’s kind of somewhere between the two — I guess 2D more than 3D really.
Essentially, every object spawns somewhere on the screen, and then moves away from the centre at an accelerating pace. Pressing a direction just nudges everything the other way (after which it changes direction because it’s moved relative to the centre). Meanwhile the object has a kind of “z coordinate” that just increases with time and controls how bright/large it’s drawn. It’s all totally fake, nothing has “a position in 3D space”, just a position on the screen and a distance value. Which I suppose is still three dimensions, but not quite the ones you’d expect in a 3D engine.