The Marvel Avengers: Chronicles Add-on for Pinball FX2 has 4 achievements worth 40 gamerscore.
Score a Surfer award on The Infinity Gauntlet! (Single player only)
Save Cap's ball from draining down an outlane on Marvel's The Avengers table. (Single player only)
Accomplish all the Main and Side missions on World War Hulk! (Single player only)
Collect all targets during Blitzkrieg USA on Fear Itself! (Single player only)