Here is the full list of all 14 ENYO Arcade achievements.
Complete stage 03 without dying
Complete stages 0 to 3 in one session without dying
Complete stage 02 without dying
Complete stages 0 to 2 in one session without dying
Reach the boss fight in stage 3 without killing anything
Find all 15 InfoBalls in one complete run!
Complete stage 01 without dying
Complete stages 0 and 1 in one session without dying
Complete stage 1 without killing anything
Reach the boss fight in stage 2 without killing anything
Complete stage 0 without dying
Complete stage 0 without killing anything
Found Rufus