Monster Mash Quest Discussion/Hints (No Spoilers)

So I'm having real trouble with the Monster Mash quest, as I'm sure a few more of you out there are, too.
Let us discuss and give hints to some of the possible answers, but please no direct spoilers or answers.
 
I have three of the 5 so far, but the last two have completely lost me.
The other two are really baffling me. If anyone could provide me with some hints without spoiling it entirely that would be great.
 
Here are some hints for people struggling with this one.
 
EDIT: I have found all five and have compiled these hints in the order that the quest lists them. Good luck, duders! And big thanks to everyone who helped out.

Those are the same three I found. I was more surprised by opening every single console page on the site and somehow still missing half of those ones.

I found the one that's in the title of the D&D parody in Bully. And the 3 you're describing. Stumped on the fifth.

" Whoever came up with the 5 monsters in this plays some weird rpgs... How is skeleton not part of these 5? Compared to some of the other ones... "

I am only missing the second one and I have no idea anymore :(

Cliche my butt.

" Cliche my butt. "

Mimic/Monster Chest. Skeleton. Zombie/Undead. Mind Flayer (okay, so this needs a page, but still). 
 
I almost think the list should've been longer just to accommodate these obvious omissions.

Okay I now have 4, the last one I need is the second one. The fourth one is bloody obscure. These definitely aren't as clichéd as was first indicated. If anyone has the second creature please provide some hints/clues!

Zombies/Undead not being one of the five is total fail. What RPG doesn't have these?

"  If anyone has the second creature please provide some hints/clues! "

" Okay I now have 4, the last one I need is the second one. The fourth one is bloody obscure. These definitely aren't as clichéd as was first indicated. If anyone has the second creature please provide some hints/clues! "

I even tried stuff like Will-O'-Wisp thinking I was being smart and edgy, but still no damn luck. As for the fourth one...
 

This quest is really freaking hard..i am not big on "classic" RPG's so this one is kinda tough for me.

I think I've found the 4th one, but there's no indication that I got it. Either I'm running into a bug, or I got the creature wrong.

Call me stupid but I'm not getting anything out of "anthromorphic dog." :(

I just got the second one, it seems really obvious once you get it.
 
I'll try to think of a better hint that doesn't straight give it away, but until then think of monsters with somewhat silly names that aren't used much anymore.

yes please think of a better on :D

I'm going to start going through these:
 
http://en.wikipedia.org/wiki/Lists_of_Dungeons_&_Dragons_monsters
 
 I have all but the first one, now.

Bah, I'm also still missing the second and fourth one.The only thing I could think of when you mentioned anthropomorphic dog was Cerberus, which isn't even anthropomorphic at all and I already tried Gnolls (I know, hyenas) earlier.
 
Also, what's up with the "Fire Bad" quest? I've never heard of that combo before.

Man, it's neither owlbear nor beholder, so I'm out of classic monster ideas.

" I'm going to start going through these:
 
http://en.wikipedia.org/wiki/Lists_of_Dungeons_&_Dragons_monsters
 
I have all but the first one, now.
"

Hint for second one:
 

Wait, is the hint for #3 in the first post? Because I guess I'm missing #2 and #3; I've had #4 all along...?

" Wait, is the hint for #3 in the first post? Because I guess I'm missing #2 and #3; I've had #4 all along...? "

...I already tried Gnolls (I know, hyenas) earlier.

" Hint for second one:
 

SPOILER WARNING: Click here to reveal hidden content.

It's a name made up of the name of two other creatures.

"

Man the second one is really rackin my brain.  Any clues would be lovely.  

Okay guys, thanks so much for all your help. To help everyone, I'm going to compile all the hints gathered here in order and put them on my first post. Hopefully this will help a bunch of people.

" Hint for second one:

Alright, got all of 'em, thanks for the hints, guys. 
 
The weird thing is that I had visited the page for #3 multiple, multiple times, but it never gave it to me. Then I went and got #4 and it gave me the "quest complete." Whatever, at least I got it :D

The first one is the only one that's bugging me now, any hints?

I still have no idea :(

" The first one is the only one that's bugging me now, any hints? "

That's it, guys. I've compiled all the hints for all 5 in the correct order they appear in the quest. If you really, really struggle, feel free to PM me and I shall give you some extra clues.

" @Anathem: I don't know how I just did it, but I was looking through those lists you linked, saw a really stupid name that was made up of the names of two other creatures, typed it in, and bam.  This is almost more obscure then #4. I've  never even heard of it... "

" @General_D23 said:

" @Anathem: I don't know how I just did it, but I was looking through those lists you linked, saw a really stupid name that was made up of the names of two other creatures, typed it in, and bam.  This is almost more obscure then #4. I've  never even heard of it... "

True, It's pretty damn ridiculous. "

" @NickM said:

" @General_D23 said:

" @Anathem: I don't know how I just did it, but I was looking through those lists you linked, saw a really stupid name that was made up of the names of two other creatures, typed it in, and bam.  This is almost more obscure then #4. I've  never even heard of it... "

True, It's pretty damn ridiculous. "

Very much the same here, I used the clue and found it straight away. Hearing Bender saying it in my mind helped, too. Haha. Maybe I've seen that film a few too many times... "

even with hints from Meltbrain I still have not found it \o/