Small bug with new ability, although a rare occurrence. If you land the Diamond Cracker barely on an edge, he'll start flickering between his edge-tilting sprites and normal standing sprites, while completely invincible. If he walks onto the ledge, it discharges as normal. If he falls off, he'll take a hit if he hits an enemy, and then discharge the ability.
Cool new ability, though.
No problems with the wall-jump ability, although it's more obvious when you fail now.
EDIT: You sink right to the bottom of slime pools before taking a hit from them.