Most of the ideas given so far are junk. Here are the ones that I like and that you guys should take-on:

MINI-DOORS - LEVER / KEY-COMBO
Doors that are not the goal, but need to be opened to pass. This is a good idea, and anyone rejecting this is stupid. Either levers or keys would work for this, it doesn't matter. Or perhaps there could be a set timer. Whichever way, it's a good idea and can be used a lot in-game.

WIND-VENT / BOOST
Another good idea. Pushes objects 10 tiles up or something, and then pushes them to the right or left once reached the peak (there could be a Right Wind Vent, Left Wind Vent, or even a Neutral Wind Vent). The Boost idea is also one that I like that fits in this same category. It's the same thing just put into a crate. The wind vent could turn on every 3 seconds or so, or there could be a non-stop vent.

BUBBLE-VENT
An vent underwater that makes bubbles appear. You grab the bubbles and you get more air. Simple, and important. Could work well.

INVINCIBILITY
I like this idea. But I also understand why people are rejecting it. Power-ups can bring a new feel to the game, and maybe for the worse. IDK, I like it. It could introduce a new type of speed cave.

Note: Do not reject ideas such as "invisible terrain" that are extras. They cannot hurt the progress of the game in any way. They are fun and can be used in different ways.

I'll edit when I see more good ideas.

We could do mini doors, like how they did it in N, but that might be a bit complicated to code; I think you'd have to ask Accel. Even so, that would feel weird in a our game, considering that it's going to be based off of hatpc. I'm all NEUTRAL

Boosts=/=good idea. I just don't like it, and I don't think many other people in the interguild like it either REJECT

Bubble vent... Hmm... I believe we already went over bubbles earlier, on the old interguild, and eventually rejected it for some reason I cannot think of off the top of my head.  Either way, I don't like this a lot more than I don't like the idea of air bubbles that stay stationary. REJECT

Invincibility=REJECT

Extras smextas. If we aren't willing to put it in the main levels, it shouldn't be part of the game, plain and simple. We can add some extras after the release of the main levels and such, but they should still be good enough features that we would have been willing to use them in the main levels, or of course prior to that, we are willing to use them in the main levels, but we just never got a chance, which is what I imagine what happened to the water and water tap crates in hatpc. They just never got a chance to use/introduce them.

mini doors - REJECT
boost/fan - I will APPROVE fans. I made up boosts.
bubble vent: NEUTRAL
Invincibility: REJECT

mini doors - APPROVE We could at least test this one out.
fans - NEUTRAL It could work, but it could also be screwed over horribly.
boosts - APPROVE I have a feeling these could work out quite nice, not only upwards, but also down, horizontally or even diagnally.
Invincibility - REJECT As I said earlier, I am opposed to any form of power-up. I never liked the invincibility in HatPC either.

I do think we need a thread with all the good ideas. I'll work on that whenever I have the time.

I like all those ideas. I don't see why an option for invincibility would be a problem.

I'm starting to think that we should stop focusing too much on the main levels. It looks like the main point of Aeon is to be a user-level-based game, so why not add everything we think will work? Sounds like a workload, I know, but I mean over time, since the game will most likely be "released" when our core engine will work (which includes wooden, steel, indestructible/reusable, and fragile tile-classes with tile-types most similar to that of HATPC [and maybe that secret door idea, too]), and then I could add other things, such as wind/boosts, bubbles, and other crazy stuff.

but the main levels are still pretty important, since that's what introduces a player to the game. We'll probably have a few tutorial levels upon release, but we shouldn't go overboard and delay the public release just so we can make an epic single-player experience.

The main levels will be what will attract new players to the game. They will first try those levels and once they beat all of them and want a new challenge, they'll try the usermade levels. It will also give them ideas of what type of levels they're able to make, some basic trap sequences to use and simply a feel of how the game should be played.

And I don't like the idea of "Adding everything just to have them in the game". The game should be accessible to new players and hundreds of different objects is not a good way to do that.

Livio, the main levels are ultimately going to be pretty much user levels. I mean, we're not putting it in the hands of a computer to create them.

But the main levels are to both represent the game itself with very well made levels, and they follow a storyline.

I don't think I would like Invincibility power-ups. I don't even think we should have invincibility at all in the cave. I mean, we already don't like invincibility traps as it is, just imagine if they had them throughout the entire level? But of course, I mean, yes, there are some instances where they could be used for things other than a trap, like to give you access to a section of a cave that is blocked by 2 simple spikes.

Here's what I'm thinking: no one knows how good these features will truley be in our game, so perhaps we should just focus on the main features first. Once Accel gets the game up and running, then he'll test these new suggested features, and then we can all make a good honest decision about the suggested features, rather than right now, where we're just going on what we think.

oh yeah, that's a good point. Because no one likes to open up an editor and be overwhelmed with all the stuff there is in it. Reminds me of ZC's quest editor. *shudders*

Yeah, but we could always make the editor look better than hatpc's.

Man, with all of these good posts jell's making, there's no way he won't hit 0 karma!

Accel, what is the minimum karma possible again? That way I'd know what my karma would be.

Well, actually, Jell, you may have been -1'd while at that minimum, so you really can't tell for sure.

it is -21 trillion, 474 billion, 836 million, 381 thousand, 242.

I could also go the long way and search out the archive of all the times my posts been rated.
But this is getting offtopic.

the min is -2147483647, jell.

but this is offtopic..

I still like those ideas, though...

I thought that it was -2147483648, because it was 2 to some ridiculous power.

But this conversation is falling off a cliff of offtopicness.

So now my karma would stand at a grand total of 9. Amazing.

Have we reached a conclusion about scenery objects? Either solid or in the background.

Edit: Quirv, you are forgetting the 0.

OMG! jell's karma is below the minimum!

None of the ideas on the front of this page are bad. None should be rejected without testing. Test all of them out first, Livio, and then mess around with it and then get the majority opinion from the people.

actually we're working with negative numbers here so it's above the minimum
I think that's good for if we have a good artist that is just overflowing with good art, and we just don't have that. Otherwise it would be pretty unimportant

Mini-door: reminds me of FF CC Echoes of Time. (FF CC EOT for future reference)
Wind-gust: reminds me of LOZ Phantom Hourglass (LOZ PH, again for future reference)
Bubble-vent: reminds me of Happy Feet (HF GBA. For future reference and the last game I got on the GBA before my NDS [Nintendo DS])
Invincibility: obvious.

Mini-Door: Rejected, just doesn't sound good.
Air-Vent: Rejected, I just think it's a waste of time, personally.
Bubble Vent: Neutral, could revolutionise water levels, but could be bad.
Invincibility: Worst idea ever. REJECTED!