How to Unlock Smileton

Arrive at Smileport: After you pass the first two doors, you'll encounter your first enemies. There's a group of three, followed by another group of two at the top of some stairs. Fight them there. Further ahead, two more packs of enemies are waiting. You *can* pull these together, but make sure your Healer is ready for a potentially tough pull.

Clear Smileport: Your objective here is to defeat the boss named Face. Once defeated, you'll get a Treasure Coffer.

Arrive at the Welcome Wheel: Head down the stairs, and you'll find a group of three enemies. You can pull these towards the group of Smiley Kissers that are further down. Don't forget to open the Treasure Coffer on the left side of this area! After that, a pack of three enemies will rush towards you. Pull them back to the wall where another pack of four enemies is waiting. There's another Treasure Coffer in the corner here.

Clear the Welcome Wheel: This section requires you to defeat Frameworker. After you beat them, you'll receive a Treasure Coffer.

Arrive at the Frame: This is the final stretch. The area has no walls, which might tempt you to pull all four enemy groups at once. Warning: This is a bad idea and will likely result in a wipe! It's much safer to pull them in groups of two packs. You'll need to deal with Area of Effect (AoE) attacks here. Keep an eye out for the Smiley Supporter, which uses a donut-AoE, and the Smiley Sweeper, which uses left and right cleaves. A final Treasure Coffer is located on the side of the area.

Defeat the Big Cheese: The final boss battle is against The Big Cheese. Victory here completes the dungeon. You'll get one last Treasure Coffer before heading to the exit.