The Sea Biome is the last of the Water Specialized Biomes in PokéRogue. The Pokémon that appear here are of high rarity, including some rare and super rare Water Pokémon. These include Lapras, Piplup, and Popplio. As you level up, the evolved forms of these Pokémon will also appear. Weather wise, Sea Biome has a 20% chance of no weather during the day and an 80% chance of rain. Different weather affects the probability of certain Pokémon appearing. Marlon, the Gym Leader, uses Water Pokémon, and successfully defeating him will result in great rewards. As with the other biomes, in Classic Mode and Daily Run, the biomes change every 10 waves. In Endless Mode, on the other hand, the biome system will switch randomly between waves 1 and 4.