Update 89's Fiesta Forever event adds the Eternal Maze to Pet Simulator 99. It is a free, timed depth run: enter through the event portal, clear four areas and a boss, then push deeper before the clock runs out. You get three runs per day, so every attempt has a job. The Pet Simulator 99 wiki covers the wider game around the event.

Each run is a five-minute depth push
Go to the Fiesta Forever event hub and use the event portal to start. Entry is free, and each run gives you five minutes to break through the maze.

Work through four areas, then defeat the boss. Clearing that set lets you continue into deeper maze tiers. The goal is steady progress before the timer ends, not a leisurely tour of every wall.
You receive three Eternal Maze runs each day. If you leave early, the depth you reached still counts. Your deepest run is used for the Eternal Maze leaderboard, so an early exit does not erase the progress you made.
Cursed Mode makes later runs pay more
Cursed Mode is a later, higher-reward difficulty for players who are already pushing deeper. It is a progression goal, not something you need before starting the normal free run. Check the live in-game mode panel for its unlock and bonus details.
Maze progress also feeds the Fiesta event upgrade loop with Fiesta Orbs. The Fiesta Boosts machine in the event hub is part of that loop, so deeper runs can help with later boosts.

Treat rare pets and leaderboard prizes as chase rewards, not guaranteed drops from a normal run. Your practical loop is simple: enter the portal, spend five minutes pushing depth, and use the three daily attempts to improve your best mark.
The Pet Simulator 99 minigames collection lists other activities when you want a break from the maze.









