Save the princess.
Unify the prince and the dark prince.
Find all 9 life potions.
Drink both inverse potions.
Receive help from the mouse to escape the trapped corridor.
Drink the float potion and glide down.
Kill the chief guard.
Kill a guard with a slicer or a spike trap.
Break the magic mirror and free the dark prince.
Wake up the immortal in the catacombs.
Find the sword in the first level.
Finish the game without dying in survival mode.