Here is the full list of all 10 1993 Space Machine achievements.
Finish a level with one life.
Take no hits on any level.
Defeat Nestor in less than 3 minutes.
Defeat the malfunctioning Space Machine.
Own 4 fully upgraded weapons.
Kill no enemies except bosses.
Defeat Nestor without using the Megablast weapon.
Die exactly 42 times during the whole game.
Absorb 1000 bullets with your shield.
Be careful when playing with fire.