Icedwhisper

Pressure Is Low...

Barely finished with pressure...

Gun Jammin'

Passed on primary weapon

My Precious

Collected all coins

King of the Sky

Defeated an airship

Clean as a whistle

Destroyed all enemies

Got Your Back

Helped out a friend

Die Hard

Never Died

Beginners' (Bad) Luck

First checkpoint not accessed

Geared up!

Got best buggy upgrade

Bad Pilot

Fell off a bridge ten times

Like A Boss

Got best rating in all levels

Click, Click, Boom

Defeated 1000 enemies

MultiKill

Defeated 4 enemies with one strike

UltraKill

Defeated 6 enemies with one strike

MonsterKill

Destroyed 8 enemies with one strike

Easy, now...

Played 'Easy' Mode

Respectable

Played the 'normal' way

The Hard Way

Played 'Absurd' Mode

Finished Laying Pipes

Final Destination

Best Buds

Played game in co-op mode

Plan Balked