Defeat the boss of the caves
Defeat the boss of the castle
Defeat the boss of the temple
Defeat the boss of the mountains
But a welcome one (unlock your first developer medal)
Defeat the boss of the sub base
Defeat the boss of the space station
Complete The Caves
Complete The Castle
Complete The Temple
Complete The Montains
Complete The Sub Base
Complete The Station
Collect your first soul
Get all the normal gold medals
Get your first gold medal
Watch a replay
Beat a level without touching the ground after jumping once
Collect every souls in The Caves
Collect every souls in The Castle
Collect every souls in The Temple
Collect every souls in The Mountains
Collect every souls in The Sub-Base
Collect every souls in The Station
Complete The Caves in Apocalypse
Complete The Castle in Apocalypse
Complete The Temple in Apocalypse
Complete The Mountains in Apocalypse
Complete The Sub-Base in Apocalypse
Complete The Station in Apocalypse