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Oxygen Algae (氧气藻; pinyin: yǎngqì zǎo) was a plant and an environment modifier in Plants vs. Zombies Online, Plants vs. Zombies: Journey to the West, and later Plants vs. Zombies: Great Wall Edition. It is an aquatic plant, and as such can only be planted underwater. Since most plants cannot be planted underwater, the Oxygen Algae must be used. When planted, the player will be able to plant any other plant in a 3x3 area around it in Plants vs. Zombies: Journey to the West, or a cross-shaped area but can also upgrade the oxygen range by spending sun on it in Plants vs. Zombies Online.

Origins

Kelp pic

It is based on kelp, large brown algae seaweeds that make up the order Laminariales.

Its Plants vs. Zombies Online appearance could additionally be based on the bubble algae (Valonia ventricosa), a species of green algae found in many oceans throughout the world in tropical and subtropical regions and is one of the largest unicellular organisms on earth.

History

Plants vs. Zombies: Great Wall Edition/Journey to the West

In Plants vs. Zombies: Journey to the West, Oxygen Algae was the first plant obtained in the Underwater World. It was integral to the waterlogged areas of Underwater World and The Dragon's Palace as it provided oxygen in a 3x3 area around itself, allowing non-aquatic plants to survive underwater to fight various undersea zombies.

It was later added to Plants vs. Zombies: Great Wall Edition, as Journey to the West had been merged with the game before the app was removed.

Plants vs. Zombies Online

In Plants vs. Zombies Online, Oxygen Algae released oxygen in a cross shape around it to let land plants survive in an aquatic environment. It also had a meter below it with 3 sections, which was used to show the level of Oxygen Algae. The player could click on the Oxygen Algae to level it up by spending some sun.

  • The first level costed 75 sun and made the oxygen-supplying range become 3x3.
  • The second level costed 125 sun and made the oxygen-supplying range become a diamond shape.
  • The third level costed 200 sun and made the oxygen-supplying range become 5x5.

Almanac entry

Oxygen Algae Almanac entry

Plants vs. Zombies: Great Wall Edition/Journey to the West

氧气藻

氧气藻可以提供氧气泡给地上的植物
范围:十字型
必须种植在海底

“噗咕……噗咕……” 象气蓬默默地吐着气泡,倒不是他愿意一直吐,只怪他昨晚喝了太多的汽水。不过有传言说,他除了吐气泡就不会做别的了

恢复时间:
消耗阳光:25


In English:

Oxygen Algae

Oxygen Algae can provide oxygen bubbles to plants on land
Range: Cross-shaped (3x3 in-game)
Must be planted underwater

"Oh...hey..." Like a puffy air bubble, it wasn't that he was willing to vomit, only to blame him for drinking too much soda last night. However, there are rumors that he will not do anything other than spit.

Recharge: fast
Cost:25

Plant Food effect

In Plants vs. Zombies Online, its Plant Food ability was to heal all plants around it to their maximum health.

Gallery

Plants vs. Zombies: Great Wall Edition/Journey to the West

Plants vs. Zombies Online

Trivia

General

  • Algae is actually neither plant, animal, nor fungi. Algae is usually a single-celled organism, however, multi-cellular algae are not unknown to exist.

Specific to Plants vs. Zombies: Great Wall Edition/Journey to the West

  • If it got eaten, the player had 5 seconds to plant another Oxygen Algae before all plants in the 3x3 area where it once was drowned.

Specific to Plants vs. Zombies Online

  • It was the first plant in Plants vs. Zombies Online to be upgradable during the level without the help of a seed packet.
    • Ironically, it could not be upgraded from the Greenhouse.
V · T · E
Plants (Tower defense)
Plants vs. Zombies: Journey to the West
Day Peashooter · Sunflower · Cherry Bomb · Wall-nut · Potato Mine · Snow Pea · Chomper · Repeater
Night Puff-shroom · Sun-shroom · Fume-shroom · Grave Buster · Hypno-shroom · Scaredy-shroom · Ice-shroom · Doom-shroom
Pool Lily Pad · Squash · Threepeater · Tangle Kelp · Jalapeno · Spikeweed · Torchwood · Tall-nut
Fog Sea-shroom · Plantern · Cactus · Blover · Split Pea · Starfruit · Pumpkin · Magnet-shroom
Roof Cabbage-pult · Flower Pot · Kernel-pult · Coffee Bean · Garlic · Umbrella Leaf · Marigold · Melon-pult
Underwater World Oxygen Algae · Sea Starfruit · Bramble Sea Grass
The Dragon's Palace Water Gun Grass
Upgrades Gatling Pea · Twin Sunflower · Gloom-shroom · Cattail · Winter Melon · Gold Magnet · Spikerock · Cob Cannon
Others Imitater · Explode-o-nut · Giant Wall-nut · Electric Anemone · Aggro Brocco · Pomegunate · Carrotillery · Oak Archer · Ghost Pepper · Laser Bean · Dandelion · Snapdragon · Bonk Choy
Hero Plants Iron Man Nut · Monkey King Peashooter · Pig Squash · Nut Wujing · Monk Flower · Nezha Peashooter
Plants vs. Zombies Online
Player's House Sunflower · Peashooter · Wall-nut · Potato Mine
Qin Shi Huang Mausoleum Bruce Bamboo · Carrot Rocket · Pomegranate-pult · Dandelion · Venus Flytrap · Wax Gourd · Sod
Ancient Egypt Bloomerang · Bonk Choy · Grave Buster · Iceberg Lettuce · Cabbage-pult
Pirate Seas Snapdragon · Spikeweed · Spring Bean · Kernel-pult · Coconut Cannon · Narcissus · Durian · Spikerock · Pineapple Cannon · Threepeater
Far Future Laser Bean · Blover · Citron · E.M.Peach · Tile Turnip · Ganoderma · Banana Tree · Nitration Mushroom · Infi-nut · Magnifying Grass
East Sea Dragon Palace Oxygen Algae · Garlic · Bubble Flower · Electric Anemone
Upgrades Twin Sunflower · Repeater
VIPs Winter Melon
Power Ups Cherry Bomb · Jalapeno
Premium Squash · Snow Pea · Tall-nut
Adventure Mode only Magic Vine · Split Pea · Chili Bean · Lightning Reed · Pea Pod · Melon-pult · Starfruit · Chomper · Fire Peashooter · Cattail · Zorrose · Clivia · Sap-fling · Acidic Citrus · Magic-shroom · Ghost Pepper · Guacodile · Hurrikale · Plantern · Oak Archer · Homing Thistle · Pepper-pult · Radish · Toadstool · Blooming Heart · Red Stinger · Electric Blueberry · A.K.E.E. · Moonflower · Guerrequila · Aspiragus · Pumpkin Witch · Mine Fruit · Sea Anemone · Litchi · Sea Starfruit
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