Defeat Brinsop the Evil Dragon
The Lockwood Space has a Fantasy Dragon makeover.
If you walk in the main space, you will see clusters of eggs that crunch when you step on them. They are part of a minigame (on the right) with a caged dragon.
Activating the minigame will show a timer, more eggs, rewards, and a clock.

Eggs are worth 1 except the gold eggs. Gold eggs are 1pt and also tallied separately for rewards (press square). Seems you must get 25 gold eggs for a Pinwheel (hand) reward, but they don't seem to need to be saved (reward at 580 25 5:45).

The Fool Throttle Rogue costume gives you a collection bonus (2X). You do not need to wear the whole costume for the bonus, but you need at least one piece on. The gold egg tally is also double.

Eggs smashed outside the minigame still count toward your total.

You can leave the minigame and resume while still in the space. You do not need to be in the minigame to save your eggs.

Caveat: the server update is some 15 minutes. Leaving the space clears any unsaved eggs.
The Gold egg tally, the giant Minotaur, and/or the sales points may not resolve on any given visit.