Phantomilians are residents that have been trapped. There is said to be a total of six Phantomilians to be found throughout each vision. Visions are technically the missions within the game. Getting them all will net you with the Hero of Phantomile trophy achievement (Save dreamers from their nightmares)
They are one of the many collectibles within the game and look like little musical note bubbles. Although some Phantomilians can also be found inside Ngapoko eggs
When you have successfully managed to find a Phantomilian the game will then indicate how many you have left to find. The game will indicate this by showing a small collectible picture.
This specific guide will help you locate all 6 Phantomilians located within Vision 5-2 (Between Light and Darkness)
PREVIOUS VISION: Vision 5-1
GUIDE: After activating the first blue switch we will then come to a section with several platforms. The Phantomilian is here.
GUIDE: After activating the second switch head through the doorway and make your way to the left of the screen. Here we can find a small moving platform.
Use the moving platform and head through the following doorway to find this next Phantomilian
GUIDE: Continue on as normal and destroy the Ngapoko egg along the way. Then head up the platform and then continue left. Ignore the doorway for now.
Use the invisible platforms to reach the platform to the left. Here we will come across a beam of fire and, more importantly, another Phantomilian.
GUIDE: Continue the game as normal until you reach the two Armored Moos. The next Phantomilian is just above us. Use the disappearing platforms in order to reach it.
GUIDE: From the last Phantomilian defeat the two Armored Moo and enter through the open doorway.
We will be able to spot the next Phantomilian in this next room. Unfortunately it is currently being blocked off.
In order to reach it we will have to jump and reach the platforms on the right side of the screen. Here we will be able to find and activate a switch. This switch will remove the barrier that prevents us from collecting the reward
GUIDE: Staying in the same area as the last Phantomilian that we found. We will now want to make our way to the left side of the screen.
Here we will find another fire beam, alongside a switch too. Activate the switch and head through the doorway.
The next Phantomilian is inside this next area.
NEXT VISION: Vision 6-1