Clean up the Ventilation System.
Fix the malfunctioning Heater Core.
It will live on in our memory.
Drain all of the water in the Aqueducts.
Defeat a squeaky foe.
Finish the game with 100% completion rate.
Finish the game.
Finish the game without collecting a single health upgrade.
Obtain the Hopper from Rebba.
Obtain the Repeater from Rebba.
Finish the Heater Core before acquiring the Spin Jump.
Finish the game in under 1 hour.
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