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