Bugs and Glitches

This page is a collection of **bugs** and **glitches** in Mope.io that used to be or still are in the game. A bug can be defined as an unintentional effect that causes a certain element or aspect to go haywire, or not function as it normally should.

## Patched

*Main article: Bugs and Glitches/Patched*
## Ongoing

The following bugs still exist in the game. These are sorted by date instead of being grouped by relevance.

### Live Mope

*The wiki does not endorse using bugs that can give the player an advantage, and only documents them here.*

#### Broken Running

On mobile, if the player holds the "Run" button for too long or is killed while holding it, it can become stuck. This causes the player's animal run endlessly, unless it is killed or runs out of water. This is easily fixed by double tapping or hitting the run button once, which causes the animal to return to normal. Desktop Mope.io has a similar issue, but it only occurs if the player has been holding left-click or space as they are killed. By hitting either button once, the problem is fixed.

This bug is one of the oldest well known ones that is still in the game.

#### Lopsided Shine

If the player is using a Skin and is thrown into the air (best seen with Dino Monster) right as or before the star twinkles on their skin, it will be far off from the player's animal but correct once they hit the ground. This is likely an issue with the fact it is a separate asset from the animal's and may not be fixed.

#### Giant Spear

Sometimes if The Bigfoot throws their spear, it will be around 3 times its usual size and remain that way when hitting an animal. This bug has been partially fixed: It's sometimes enormous if it is thrown and immediately hits a target, but shrinks as soon as it does.

#### Tabbed Out

Sometimes in the game and especially upon respawning, button and mouse inputs such as chatting will cease to function. The problem is easily fixed by pressing the `Tab` key twice.

This bug used to occur much more often in 2021, but is now significantly rarer.

#### Mouse Placement

Rarely while turning or boosting, the game bugs out and thinks the player has their mouse very close to the center of their animal, causing them to move very slowly, if at all. Boosting has little effect, and sometimes turning doesn't work. This bug seems to happen very sporadically.

#### Black Screen

"Black Screen" is the name given to a variety of bugs that all cause the player's screen to turn dark. The most well known one is a black screen that causes the player to gain extreme amounts of XP, coins, and have no water immediately after entering the game, although these values aren't actually reflected in the game and aren't saved. Another black screen bug, introduced with the February 1st 2022 changes, causes the screen to fade to complete darkness, although chat and the UI overlay can still be seen. The game is practically unplayable in this state. Some bugs that caused this were fixed on May 27, 2022, but it still occurs rarely.

#### Map Dot Discrepancy

Introduced on February 1, 2022, sometimes the player's dot on the map is displaced by a significant margin (diagonally upwards or downwards) for certain lengths of time before correcting to its actual position. The length varies from minutes to flashes from the correct location to the displaced one. It was partially fixed in the May 27, 2022 update: It still happens, but for less time and slightly less commonly.

#### Watermelon Hitbox

Since February 1, 2022, Watermelons have a slight hitbox that pushes the player slightly when they spawn or are eaten in one bite.

#### Green Screen

Also known as the client bug, this glitch happens randomly, starting with an asset z-fighting with another and progressing into the player's animal and assets being left behind by the camera. Certain assets may be stuck on screen, disappear, or z-fight in a certain location, and the game gets progressively laggier from the excess assets. If they attempt to do a 1v1, the options will over-layer each other. The same occurs with 1v1 Redemption, but the player can't see themselves or the AI. The player can still play normally and is affected by the game, but nothing is viewed correctly on their screen. This bug has been in place since February 1, 2022. Its frequency decreased significantly since May 27, 2022, but is appears to be more common again as of December 2022.

#### False River Size

Since an unknown date (probably since February 1, 2022), the visual size of a river doesn't align with its actual size, giving the illusion that the player is swimming on land when there's actually water there. This only happens at maximum and minimum river size. It sometimes fixes itself when unloaded and reloaded.

#### Limited KD Selection

Starting sometime in February 2022, locked King Dragon skins and the Golden King Dragon skin don't show up on the Upgrade Menu unless King Dragon is obtained by chance. The only two options are the default King Dragon skin and Queen Flame(if bought).

#### Animal Selection during Ad

Starting on May 27, 2022, the animal selection screen occasionally appears during advertisements after hitting the play button. It previously appeared *after* the advertisement. Also, the game had a high chance of disconnecting (without reloading the page) the player after the advertisement if it occurs, which causes the home screen to reappear and cause a visual overlap with the animal selection UI and map. It no longer appears to crash afterwards, but the rest of the bug still persists.

#### Extremely fast flying

Since fly boosting was added, sometimes flying while boosting will be much faster than normal. It's probably reliant on when the boost button is held before and as the flight starts.

#### Tiny Snowballs

It's not known when this bug started (probably since February 1, 2022), but sometimes snowballs produced by the Arctic Volcano are much smaller than normal.

#### Non-harming Fire

Its starting date is unknown, but for some reason the large fire produced by the Desert Volcano or Volcano itself doesn't harm players, either in its fireball or still fire state. All other sources of fire in the game burn players.

#### AI Anti-Burning

The date of this bug is unknown. All AIs can't be burnt, which means they can walk on lava.

#### Red Mushroom Berries

Since July 12, 2022, Red Mushrooms give only Berries when enough water is shot at them instead of a mix of berries and mushrooms.

### Snow Roar Instakill

    As a Yeti, if a player uses its ability on an animal which is healing on a Healing Stone, the animal will die instantly. Oddly enough, the killed animal's XP was not given to the player.

A version of this bug has returned on December 22, 2022, albeit no longer requires an animal to be healing.

### Beta

Bugs since the January 2024 iteration of Beta.

No exclusive bugs are currently known since the latest iteration.

## Bugs of Unknown Status

The following bugs have existed, but is unclear if they are still existent in the game.

#### 1v1 Arena Time Reset and Breaking

When 2 Black Dragons are in a 1v1 arena, the time resets after 655 seconds. Around 150 seconds after resetting the time, it suddenly disappears, with both Black Dragons being alive. This bug may not have been fixed.

#### White Giraffe Family Not Following

If a player obtains the full White Giraffe family, stomps, and kills an Animal without the children stomping as well, they will get stuck in place and die of thirst eventually if not in water. It's unknown if this bug is still in place.

## Bugs that might be Features

The following "bugs" might actually be intended behavior for a particular animal but have yet to be confirmed.

#### Energy Draining While Low

The Pterodactyl passively begins to drain energy as opposed to gain when under 25% of energy. Despite being addressed since 2018, it remains a trait of the Pterodactyl to this day.

#### Shaheen Hurt

When a player is flying as Shaheen Falcon, and dives to ground without attacking a player on the way down, the player will be hurt slightly.

#### Arctic Water Tail Slap

The King Dragon can't tail slap in water sources in the Arctic.