Here is the full list of all 12 Greed achievements.
Kill 100 enemies
Take no hit
Unlock every upgrades in the forge
Kill 1000 enemies
Finish the game with all the types of weapon
Beat the last wave (1st Biome)
Beat the last wave (2nd Biome)
Beat the Boss
Fully upgrade the Bow
Fully upgrade the Daggers
Fully upgrade the chakrams
Equip All skills