The Binding of Isaac: Wrath of the Lamb v1.3 Patch
-8 new unlockable items
-8 new achievements
-a new not so secret final chapter
-a new final ending
-3 new music tracks
-new mini boss
-updated art, sound fxs and other touch ups added/polished.
-Ending 12 and challenge 10 now unlock for everyone.
-Brimstone is back in working order
-Alt end boss active
-Familiar conflicts fixed
-item frequency has been fixed
-enemys have been rebalanced
-bosses have been rebalanced
-a "secret boss" now appears where intended