Best method is to check out Baz's assault on Juno and take it from there... (Yep, he's negotiated the exercise bike again and had a crafty shufty at Konami's 1983 shoot em up) Atari 8bit version: Hmmm, something of the 'faithfully recreated game experience' sadly lacking here with the sidewards rather than vertical scroll attack patterns. It struggles in the sonics dept and overall doesn't manage to recapture the excitement of the original's speed or dynamic, colourful explosions etc - hand the code over to Archer Maclean - he'll sort it!