Here is the full list of all 9 So Much Blood achievements.
You did it! Now go kill more!
Wow, you're no longer some weakling
Take out those enemies with that new fire power!
Not bad but we'll see about the next one
I didn't realize you were so weak you could only beat normal mode
Ok, you have slightly done more than others, you're still not impressing me
Impressive..
I give you props.. you're a legend
WooHoo