Here is the full list of all 23 Darkanoid achievements.
Kill first boss
Destroy 500 blocks
5000 scores
Destroy 100 blocks
Destroy 2500 blocks
Destroy 10000 blocks
50000 scores
Kill second boss
Kill third boss
500000 score
Kill fourth boss
Detonate any 100 bombs
Detonate any 500 bombsany 500 bombs
Complete the Black Hole Special Level
Collect 1000 gems
Open all skins
Colllect 50 bonuses in one game
Complete Story in Realism mode
Destroy 200 drones
3 min Survival remained
5 min Endless remained
10 min Endless remained
20 min Endless remained