Here is the full list of all 25 Full Mojo Rampage achievements.
Complete all the quests in "This is VOODOOOO!" difficulty
Find all the items from the library
Unlock the champion mask
Complete all the quests in "WTH is this?" difficulty
Complete all the quests in "Definitely not easy" difficulty
Reach max level
Complete all the quests in "Annoying" difficulty
Complete all the quests in "Hardcore" difficulty
Pick up 10000 coins
Kill an enemy when you are heavily wounded (1% of life or less)
Complete Quest 4
Complete survival mode in masochistic difficulty
Kill Mandingo without being damaged
Complete survival mode
Kill Wormling without being damaged
Complete Quest 3
Unlock all the gods
Complete Quest 2
Get the best score in a PVP match
Get 10 frags in a PVP row without being killed
Complete Quest 1
Complete a quest in cooperative mode
Talk to 3 different gods in a single match
Pick up 1000 coins
Play in cooperative mode