Blooper
It is a squid-like thing found in Ricco Harbor. You can spray it to make it dizzy for a while, or you can squish it for a coin.
Blue Bullet
It's like a Bullet Bill, but when sprayed it makes a Water Carton.
Bob-omb
A walking black bomb that appears in multiple places. They can be stunned by spraying them and then thrown at the moles in the red cannons.
Boo
A Slobbering ghost that can turn invisible and mimic a coin or Shadow Mario.
Bowser
The Final Boss in the game he is also partnered up with Bowser.Jr who caused the crime and made Shadow Mario and the graffiti.They are at Corona Mountain. To defeat them run to each of the five corners and keep spraying Water.
Grouper
Grouper are fish creatures that will drag Mario under the water when he is swimming. There is a glitch when Mario swims while carrying a fruit, the fish will chase him but will not be able to touch him.
Bullet Bill
A missile that comes from the red cannon operated by a monty mole, and can either be sprayed or jumped on to be defeated.
Cataquack
Huge, walking ducks that appear in Gelato Beach. They will chase after Mario if he is spotted by one or more. The Blue ones do no damage to Mario whilst the red ones do.
Cheep-Cheep
Electro Koopa
Gold Bullet
It's like a Bullet Bill, but when sprayed, it makes ten coins.
Gooper Blooper
A larger form of a Blooper with a cork in its mouth. It is a boss in some levels.
Goopy
Hen Puffy
Mecha Bowser
Another Boss being controlled by Bowser.Jr
Pig Puffy
Pokey
Strange, large enemies that are made of spiky yellow spheres for a body that are disguised as regular pink flowers until Mario comes close.
Pop-Up Flower
Shadow Mario
In certain times, he will carry a Yoshi Egg or one of FLUDD's attachments. He is a boss for some levels.
Seedy Pod
Seedy Pods are like Mini Pokeys but are dark blue and do not live in the ground. When mario comes to close they will go underground and start releasing seeds out of their exposed flowers that hurt Mario
Sleeping Boo
A HUGE Boo that is asleep in the hotel. It has a lethal touch and it will block doors and paths that Mario needs to get through. It can only be defeated with Yoshi by being eaten.
Torpedo Ted
Torpedo Ted is a Bullet Bill That is Purple and has a red nose. It will target Mario directly and will blink its nose when it has done so. Sort of like a mechanical version of that weird Christmas reindeer.
Strollin' Stu
Strollin' Stu is a small creature that will chase Mario and hurt him on contact. A simple jump on the head will destroy them. they are most notable for their Polkadot pants. They might also be distant cousins of Goombas.