Full list of all 23 Super Space Serpent SE achievements worth 1,000 gamerscore. It takes around 1-2 hours to unlock all of the achievements on Xbox One.
Played 100 times
Played the game 50 times
Finish the game thank you for playing
Defeat all the worlds
There must be a God! => Yes You , get to the third boss
Defeat the third world
Get the Blurred upgrade
survive till the second boss
Defeat the second world
Get a life upgrade
Beat the first Boss
Get the Double Gun
get hit the first time
Defeat the first world
kill 1000 enemies
Get the Triple Gun
Get the monochrome upgrade
kill 100 enemies
Killed your first 10 enemies
Kill your first enemy
play the game 10 times
Get killed
Unlocks when you play Super Space Serpent SE for the first time