All 20 unknown medals in order of ?'s: 1)Buy all shop equipment 2)Defeat Jack 3) Defeat Giant Squid 4)Defeat Mammoth 5)Defeat Desert Tank 6)Defeat three headed dragon 7) Eat a hamburger 8)Click 100 slimes in loader 9)Use beserk (special skill learned from forest NPC) 10)Use a dark rune in battle 11,12,13)Use Nuke,Genesis,Ragnarok skill 14)Learn a skill 15)Fully upgrade a weapon 16)Click natt's milk bottles 17)Use meow meow skill (special skill learned from town NPC) 18)Summon narwhal (earned when upgrading pirate armor to lvl5 and narwhal is summoned in battle) 19)Click spacebar behind a pig 20)View all concept art, Hope this helped! Plus rates appreciated!i
 "Space is Key"){kind=icon}
 "Give Up"){kind=icon}
 "Upgrade Complete 2"){kind=icon}
 "A Knight's Story 2"){kind=icon}
 "Arkandian Revenant"){kind=icon}
 "City Under Siege"){kind=icon}
 "Flight"){kind=icon}
 "Kick Out Bieber"){kind=icon}
 "Stick War"){kind=icon}
 "Flagstaff: Chapter Three"){kind=icon}
 "Dibbles: For The Greater Good"){kind=icon}
 "Transformice"){kind=icon}
 "Epic Battle Fantasy 3"){kind=icon}