I want to your opinion on what a good level needs..Anything would do

Single Player: At least one event that activates a boss or ends the level.
Battle: At least one start.
CTF: At least one start, and at least two CTF bases.
Treasure: At least one start, at least one End Area event, and at least one gem.
Race: At least one start, and at least one warp.

Just look at other good levels. Make good eyecandy, take care of the gameplay, spend effort on the level.

Put stuff in. Don't make the level completely empty and devoid of stuff. After all, stuff is good.

If it's a single player level, only put one or two (max. three) weapon powerups in. If it's a battle/treasure hunt level, put in as many as you bloody well want. People will enjoy flying around and shooting stuff, and doing twice the damage. If it's a race level, put in mainly ice and RF ammo, because nothing else will really work well on the run. Lastly, if it's a CTF/assault level, don't put in too many powerups, or else everyone will die too fast. Remember, in CTF, you only have 3× health, instead of 5×.

Oh, one other thing: I got this advice from a pro levelmaker, although I can't remember which one it was. Split the level up into sections. Create one section at a time. Decide what you want in each section. Completely finish that one section before you move on to another one. Then, when all three, or four, or seventy, sections are finished, connect them all with a few unmasked pathways between them, and you have a HOOJ, insteresting-looking level.

IMO.

Single Player: At least one event that activates a boss or ends the level.

How generic can you get? :P

Thanx, I'll try what you said, I love making battle levels, they make you go mental if there's to much people ya know

Who says we're not already mental?

Well anyways, Im constucting a battle level with toxic bunny's bloxonian tileset. Lego land man. So I'll need battle level tips.

Just build levels like these.

Uh...
If he gets a 9+ on his first level, I'm going to go insane.

is that even possible?

or has someone done it before? *hint hint*

Eat pie.
and popcorn.
and izecwheam.

Be original!
Learn from the masters!
That's about all.

Check these links:

http://zeepost.nl/~howtojcs/

http://www.jazz2online.com/articles/view.php?id=92


and like everybody keeps saying... play good levels and think about what made them good.