Giant Koopa
Dark Boo
Bomb Boo
Big Boo
Super Piranha Plant
Amazing Flying Hammer Bro
Spiky Troopa: These Koopas have spiky shells. Yoshi can swallow them and spit their shells at enemies.
Mega Thwomp
False Bowser: There is a False Bowser in World 8's 2nd Castle. You don't have to defeat him, so you can run under him and reach the real one.
Tanooki Goomba
Tanooki Troopa: These are Koopas with Tanooki tails.
Cosmic Clones: They are just like the ones in Super Mario Galaxy 2.
Stalking Piranha Plant
Vinesnappers: These guys are Piranha Plants that come out of ? Blocks and breathe fire at you!
Koopatrol: These guys can only be defeated by Hammers, Boomerangs, Yoshi, and Bombs. They have spears that they jab with.
Magikoopa
Spear Bro: These are Hammer Bros. that throw spears!
Fire Breathing Bowser Statue
Cannon
Bomb Cannon
Rocket Engine