Gyruss is a cross between Galaga and a tube shooter like Tempest.
Created by Konami in 1983, Gyruss allows you to spin your ship entirely around the centre of screen, in a 360 loop, firing inwards.
Tempest, by Dave Theurer, is one of the first ever ‘tube shooters’. It was released by Atari in 1981.
You control a spider-like yellow craft that walks along the edge of a 3D playfield, often taking the form of a cylindrical tube. You shoot bullets down the tube at enemies that are rising upwards to get you. Thus the name ‘tube shooter’.