Instructions
Find or synthesize a pazuzu. To make a pazuzu, combine a silvapithecus with a jamirus, king squid or gigantes. In the wild, you can only find pazuzu in the Dark World. The Dark World opens after you beat the game.
Synthesize or find a frou-frou if you don't want to use pazuzu. Look for frou-frous during the daytime in Iceolation. To synthesize the monster, combine one great argon lizard with three frou-fry lizards.
Capture or synthesize a boss troll. To make the boss troll, combine a gigantes with a diemon or a buffalogre. Alternatively, combine a diemon with a buffalogre. Look for a boss troll at night in the Treepidation area.
Go to your ship and talk to Dr. Lump in the synthesis room.
Select the boss troll and a pazuzu or a frou-frou. "Night clubber" will appear at the top of the screen and you'll see a review of the new monster's stats.
Confirm the synthesis to create the night clubber.