"What was that momma always said?" achievement

[KireRex]

how can I get the "What was that momma always said?" achievement?

[KiniXtr]

If you bought humble bundle 3, you should complete all levels of "humble bundle update" (left of the main menu).

If you didn't buy humble bundle 3... I don't know how.
Check the menu, is there an option "humble bundle update"?

[KireRex]

I didn't know I could click on that block. thanks