Oxygen Algae (氧气藻; pinyin: yǎngqì zǎo) was a plant and an environment modifier in Plants vs. Zombies: Journey to the West He was 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 him in Plants vs. Zombies: Journey to the West.
Oxygen Algae was the first plant obtained in the Underwater World. He was integral to the waterlogged areas of Underwater World and The Dragon's Palace as it provided oxygen in a 3x3 area around himself, allowing non-aquatic plants to survive underwater to fight various undersea zombies.
If eaten the surrounding plants would slowly take damage until either defeated or until another Oxygen Algae is planted in a nearby vicinity.
Oxygen Algae's abilities are a reference to real-life algae's ability to photosynthesize and produce oxygen.
Oxygen Algae can provide oxygen bubbles to plants on land
Range: Cross-shaped (3x3 in-game)
Must be planted underwater
"Puff...puff..." puffs Oxygen Algae, it wasn't that he was willing to keep spitting bubbles, only to blame him for drinking too much soda last night. However, there are rumors that he cannot do anything other than spitting bubbles.
- Algae is actually neither plant, animal, nor fungi. Algae is usually a single-celled organism, however, multi-cellular algae are not unknown to exist.
- 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.