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