Here is the full list of all 17 Murtop achievements.
Finish the stage with a combo
Kill 3 enemies at the same time
Enter a new high score
Kill 2 enemies at the same time
Kill an enemy after Murti gets hurt
Kill 4 enemies at the same time
Kill 5 enemies at the same time
Kill 6 enemies at the same time
Dig the whole screen
Kill all the enemies in a row
Kill the last enemy on the last second
Get your first extra life
Get 100.000 points
Enter the 1st place in the leaderboard
Finish the stage with no bombs
Get 500.000 points
Get 1.000.000 points