Defeat the arachnid manipulator
Defeat the unborn raptor
Defeat the menace of the fertile river
Defeat the arsonist of the barren river
Defeat the corrupter of the cosmic river
Complete a green river without taking damage
Unlock all weapons
Unlock all companions
Find all health upgrades
Find all messages in a bottle
Get all achievements
Complete a blue river without taking damage
Complete a red river without taking damage
Complete a moonlit river without taking damage