Defeated Shardbearer Morgott

Push someone off a level

Respawn 10 times

Defeated Shardbearer Radahn

Obtain the Jetpack.

Defeat Krubis.

Pop 20 Grunt eyeballs.

Found a Pulp Magazine

Found a 'Gangsters of the United States' cigarette card

Completed "An Offer You Can't Refuse"

Obtain Sweezy.

Juggle an enemy in the air with at least 5 shots.

Defeat 9-Torg.