A thumping dance track, a ship that can turn into a drill, a sense of speed that borders on dizzying, and a cross between bullet hell and an infinite racer. That's the bare bones of what you get, however what sets RBS apart from many other games is the sheer sense of style involved, this is a game that much like the old Defender, Tempest and other trippy games before it, doesn't shy away from wild, brave use of colour, and plenty of flashy lights. Combined with a thumping techno track, you get the distinct sense that you're taking part in an assault not just on your ship, but on your senses too - and I mean that in the most affectionate way possible.
The only caveat is that I would suggest for the best possible experience, you obtain a gamepad for this one, it works a hell of a lot better using twin sticks as opposed to keyboard/mouse. Just beware the LSD induced dinosaurs.