Here is the full list of all 47 Miner Lou achievements.
Complete the Tutorial
50 enemies defeated
Complete Level 1 on any difficulty
Complete Level 2 on any difficulty
Complete Level 3 on any difficulty
Complete Level 4 on any difficulty
Complete Level 5 on any difficulty
Complete Level 6 on any difficulty
Complete Level 8 on any difficulty
Complete Level 9 on any difficulty
100 enemies defeated
500 enemies defeated
1000 enemies defeated
5000 enemies defeated
10,000 enemies defeated
100,000 enemies defeated
1,000,000 enemies defeated
Reach 100 DPS
Reach 200 DPS
Reach 500 DPS
Reach 300 DPS
Reach 3000 DPS
Reach 999 DPS