Portal 2 achievements

54.74%

The Part Where He Kills You

This is that part

54.85%

Confidence Building

Complete all test chambers in the Mass and Velocity co-op course

55.36%

Tunnel of Funnel

Master the Excursion Funnel

57.31%

Dual Pit Experiment

Do the same test twice

58.40%

White Out

Complete the first Conversion Gel test

59.60%

Stranger Than Friction

Master the Propulsion Gel

61.25%

Tater Tote

Carry science forward

62.89%

Team Building

Complete all test chambers in the Team Building co-op course

63.21%

Vertically Unchallenged

Master the Repulsion Gel

65.99%

Stalemate Associate

Press the button!

66.92%

SaBOTour

Make a break for it

69.77%

High Five

Celebrate your cooperative calibration success