Arcade World & Monster Trophy (September 2025 Update)

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Last updated: 2025-09-23

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Created: 2025-09-23

This update introduces new content and features to the game. Not everything will be available straightaway on Tuesday, as some content will roll out over the next 2 months with specific events.

New modes

Monster Trophy

In this mode, 4 players compete to earn the Monster Trophy and win the battle. There are 2 main stages:

Collect 500 gems
Pick up the trophy and survive for 30 seconds

When a player reaches 500 gems and picks up the Monster Trophy, they turn into a huge Kaiju. At that point, their goal is to survive while the other 3 squads try to defeat him.

Monster Trophy Gameplay

If the Kaiju-player survives, the battle ends with them as the winner. If they are busted, the trophy is dropped and another player can try to survive.

When a Kaiju-player is busted, they aren't completely defeated. They respawn with their squaddies and most of their gems. They also get to keep the time spent as Kaiju, meaning that if they transform again, they won't have to survive the full 30 seconds (with a minimum of 10 seconds).

Arcade Blitz

This mode is similar to Gem Hunt, also featuring 10 players, but the squad progression is based on Roulette Chests instead of Coin Chests.

Roulette Chests are not only in the map, they can also be opened after busting enemy Squads and monsters.

Roulette Chests

New features

Leaderboard Events: High Score

High Score Events

Basics:

High Score is a recurring Plaza leaderboard event, available to all players.

Players compete against others of similar skill to complete an objective. This month’s challenge: win in Monster Trophy as fast as possible. The Leaderboard resets daily, giving everyone a fresh chance at top rewards.

High Score events are expected to return regularly.

Rewards:

All the participants get Lucky Boxes, but the higher you place, the more and of higher quality you get. In the future, there may be other prizes, like Skins.

These events will show up in your plaza:

High Score Plaza Event

And this is what the leaderboard looks like:

High Score Leaderboard

Lucky Boxes

Lucky Box Promo

Anyone who hasn't looked in detail into the game mechanics may not know that most chests have predefined rarities. Some are determined by the Chest Cycle, and others though other means; but the randomness of rewards wasn't truly what it appeared.

This update is introducing truly random rewards, known as Lucky Boxes. These boxes can have 5 different rarities and contain many different rewards (coins, babies, multipliers, Hero Points, skins...)

Upgrade Probabilities

Boxes usually start with Common rarity, and have 4 taps with upgrade chances.

The upgrade chances for each rarity are:

Common to Rare: 50%
Rare to Epic: 20%
Epic to Mythic: 10%
Mythic to Legendary: 5%

Based on the final probabilities, it doesn't look like each tap has an upgrade chance. If it did, getting a Common Box after 4 taps would only happen ~6% of times, but it's supposed to be 50%; as if only one tap happened.

In other words, it seems the tap representation is just a visual choice that matches with the maximum amount of upgrades possible.

This is what the upgrade path for a Common Box looks like:

Common Lucky Box Upgrades

Final Rarity	Probability
Common	50%
Rare	40%
Epic	9%
Mythic	0.95%
Legendary	0.05%

Starting Rare Lucky Box

Rare Lucky Box Upgrades

Final Rarity	Probability
Common	-
Rare	80%
Epic	18%
Mythic	1.90%
Legendary	0.10%

Starting Epic Lucky Box

Rare Lucky Box Upgrades

Final Rarity	Probability
Common	-
Rare	-
Epic	90%
Mythic	9.50%
Legendary	0.50%

Starting Mythic Lucky Box

Rare Lucky Box Upgrades