Badges

The game currently has 3 badges: Completion, Hard Mode Completion, Demise.

Pain has 2 badges : Cool, Insane

Achieving the badges
In the Completion and the Hard Mode version of it the badge is given to you when you reach Room 1001, when the first dialogue text appears.

In the demise badge you get it when the last monster spawns for the second time (since you first met him in Normal Mode).

Both of Pain's badges are beaten when you beat Pain,