As in many Yume Nikki fangames, Cerasus has its own set of effects that can be used to change Reshnha's appearance and give him certain abilities to progress through the game. There are currently 7 different effects that can be found throughout the Dream World, excluding Stomidori's letter of course.
Reshnha's default walking speed is something also worth noting. Reshnha moves very fast, so the traditionally available speed effect found in many fangames seems to have been removed in favor of this.
The effects menu with all seven collectible effects.
No Effect/Accordian
Though technically not an effect, this will be included in the list as it does help Reshnha traverse further through the dream world and can be used when pressing shift when no effects are equipped.
Action
If Reshnha has collected a song, a menu will appear allowing Reshnha to pick a song to play on his accordian. Otherwise, Reshnha will simply bring out his accordion and then put it away. Certain specific areas can be unlocked by using specific songs.
Suit
"Finely crafted, it is what I am now. Allows for me to kill."
Appearance
Reshnha's hair is styled into a pompadour, fully revealing his red eyes. He also now dons a wine red tailcoat suit with pink lapels and a cherry blossom boutonnière, along with a light pink collared shirt, matching pants, and green boots.
Action
Interacting with most NPC's will cause Reshnha to shoot and kill them using his left arm, or rather, an arm cannon.
Location
Suit Cave, after viewing the Execution Exhibition event.
Seraph
"Ah, to shine brightly and incinerate..."
Appearance
Reshnha now has six pairs of wings, using only the top pair to "fly". The other two pairs cover his body. Upon his head is a halo, and his hair is styled to form two small horn like spikes, with now only one side of his face being covered by hair. A gentle yellow glow emanates from him, most notable in dark areas of the Dream World.
Action
Pressing shift will make Reshnha open his eyes, spread open all six of his wings, and glow a bright yellow as bright orbs fill the screen. This can be used to clear away the rain created using the Swim Tube effect.
Location
Heaven Temple, after freeing the Seraph in the Freedom of the Seraph event.
Rambutan
"Tasty to eat when peeled, but this one has a surprise. It returns me to "my room"."
Appearance
Reshnha now has a giant rambutan fruit for a head.
Action
Pressing shift will make the fruit peel open from both sides, revealing a bright blue eyeball. The screen will become distorted, and Reshnha will be returned to his bedroom.
This is quite a useful effect, due to there being no way to "wake up" from the Dream World. Because of this, returning to the bedroom becomes much easier instead of having to walk back the full route.
Location
Fruit Fields, after interacting with the rambutan tree and viewing The Monarch's Hair event.
Swim Tube
"Bad luck always comes on the one day I go to the beach. Summons rain."
Appearance
Reshnha now only wears a red pair of swim trunks, and a strangely shaped white inflatable swimming tube with one eye.
Action
Pressing shift will make Reshnha smile and snap his fingers, causing rain to appear. Pressing shift again will change the density of the rain. The rain can only be cleared by using the Seraph effect, or traveling further through the Dream World.
Location
Rainy Tops, after interacting with the old swim tube.
Mushroom
"Very tasty! A choice, indeed! Summons ancient phantom crab statues."
Appearance
Reshnha becomes a lion's mane mushroom, with a piece of wood on atop his head like a little hat. He moves slightly slower now as well, most likely as he can only bounce around in order to walk.
Action
Pressing shift will make the bottom of Reshnha wiggle around for a second, and a white statue of crab will be placed. Only six can be placed before the amount is reset.
Location
Dead Techno Fields, after interacting with the Mushroom Lion and viewing the Fungi Disco event.
Bowler
Appearance
Reshnha's face is obscured by a cherry blossom. He also now wears a cherry shaped bowler hat with a green stem, and a black tuxedo suit with a pink tie and matching hot pink shoes. His skin and hair take on more saturated and neon colors, along with his hair being shorter.
Action
Pressing shift will move the blossom to reveal only his right eye, which seems to have eyeliner along it that runs down his cheek. This will cause some NPC's and specific tiles to change.
Location
Golconda Walkways, after interacting with the Meatboyo and viewing The Show event.
Kanudog
"Become a Kappa-frog-dog. Move away dream turnips."
Appearance
Reshnha becomes a Kanudog, with his skin and hair colors alternating excepting his nose. Donning only a pair of green shorts, his hair also takes the form of two long floppy ears.
Action
Pressing shift will make him stick his green tongue out and bark, revealing his now very large eyes from underneath his bangs.
Location
Kanudog Lily Pads, after completing the Kanudog Hunt event.