Here is the full list of all 30 B67 achievements.
Die once
Die 10 times
Die 50 times
Die 100 times
100 bullets fired
500 bullets fired
1000 bullets fired
5000 bullets fired
25 enemies killed
50 enemies killed
100 enemies killed
250 enemies killed
$1000 earned
$2500 earned
$5000 earned
$10000 earned
$1000 spent
$2500 spent
$5000 spent
$10000 spent
Use 3 different guns
Use 6 different guns
Use 9 different guns
Use all guns
Spot 50 footprints
Reach the ground floor
Shot from behind 20 times
Walk 10000 steps
Take longer than 5 mintues to complete a level
Play for 2 hours