Here is the full list of all 8 Death Rings of Jupiter achievements.
Fly to the edge of the 'Universe'.
Discover a secret Vi-Res cassette. This limited run is worth a lot at the shop!
Kill a boss. 1 down 2 to go, pat yourself on the back.
Kill all the bosses. Don't forget you still need to escape!
Hold 1000 coins in your space pants pockets.
Beat the game on any difficulty. Great Job!
Beat the game on hard. Worthy.
Beat the game on hard without losing a life. That's.... impossible!