Here is the full list of all 39 Halloween Forever trophies - there are 27 bronze, 7 silver, 4 gold and 1 platinum.
You rescued Butternut Bro! Your gourd from another lord.
Destroy a breakable wall.
You bested Chainsaw Megamaniac! There's no chainsaw maniac tougher than this one.
You've done it all in the world of Halloween Forever. You rule!
You bested Big Bat! Have you ever seen a bat so big?
You bested Green Hydra! Two heads are better than none, but that won't slow us down.
You bested Red Devil! Yow, it's hot in here!
You bested Eyeskuller! Eye spy with my little eye something that's about to explode!
You bested Necromancer! Back to ghoul school with you, fool!
You bested Manleech! Say your lamprey-ers!
You bested Frog King! I toad you so!
You bested Blue Devil! Necessity is the moth of invention.
You bested Necroking! The return of Necromancer! How the mighty have fallen.
You won as Butternut Bro! Way to squash the opposition.
You rescued Ms. Witch! She has endless cats!
You won as Ms. Witch! Hope you had a feline time.
You rescued A Skeleton! A bony vertebra buddy.
You won as A Skeleton! I knew you had it in you (I can see through your ribgaps).
You rescued Grizzledude. What is he doing here? Let's be friends.
You won the game as Grizzledude! He's got a good cranium, that one.
You rescued Chainsaw Maniac! Ready to cut loose!
You won the game as Chainsaw Maniac! Got any plans for Summer vacation?
You Rescued Demon Joe! Like a bat out of hell.
You won the game as Demon Joe! Now we have an all powerful demonic hero...wait a minute!
You won as Pumpkin Man! Get pumped!
Discover the five hidden mysteries of Abyxsis.
Make Chainsaw Megamaniac leave his chainsaw behind when he dies.
Destroy five hanging skeletons before they hit the ground.
Knock five spiders off the wall.
Wake up 6 sleepy frogs.
Never harm little bats! Ever!
Find all six hidden runes for a secret ending!
Beat a world without taking a hit.
Beat the game with 1 HP Mode enabled! HARDCORE!!!
Get grabbed by Blue Devil three times.
Watch Manleech vomit 10 times. Yucky!
Trigger spike traps 101 times.
Set loose 666 cats as Ms. Witch.
Run away from a crow for a very long time.