Here is the full list of all 22 Pressure achievements.
Played game in co-op mode
Never Died
Played 'Absurd' Mode
Got best rating in all levels
Helped out a friend
Played the 'normal' way
Defeated Metal Count
Played 'Easy' Mode
Destroyed 8 enemies with one strike
Got best buggy upgrade
First checkpoint not accessed
Defeated Wellness-Train
Fell off a bridge ten times
Destroyed all enemies
Collected all coins
Defeated Mantis
Defeated 1000 enemies
Defeated an airship
Passed on primary weapon
Defeated 6 enemies with one strike
Defeated 4 enemies with one strike
Barely finished with pressure…