100% (minus the 2 unreleased ones) 

Can You Feel My Power? 

 

The Power of the Asgard! 

Escape to the Surface - PORTAL 'Yeaah, you made it!!!" (Wheatley) (unl.122nd/my128/total140) 

This is a pinball game? K then :/ 

Have your Cake and Eat it - PORTAL (123rd)