Okay, so I'm gonna kill some freetime this summer and make an elaborate bomberman map. It's more tedious than difficult.

Ideas so far:
- Variable size explosions (upgradeable)
- Walls (will stop explosions, but oh the # of cases!!)
- Shields (# of hits you you can take)(upgradeable)
- Bombs will be cannons.
- Walls will be pylons.
- Special bombs
- Bomberman town (for purchasing stuff)
- Main Arena (for winning major credits to purchase items)
- World map? (for winning baby credits )

Gameplay
- Game begins with an arena match.
- After each match, players return to town.
- Whenever a player enters the arena, other players are given an option to join.
- In the arena, each player gets X (you can choose), and it's basically last man standing.

Need ideas for:
- Special bombs
- Items
- World map? (definitely not going to be as elaborate as the main arena)
- Tileset (I have it in space atm but it could change)

What about the power ups like faster running speed, more bombs being able to be placed, picking up / kicking bombs, and curses?

I don't think pylons as Walls will work, as the probes can kinda crawl inside the corners..

Rather, you should make an Unwalkable 2x2 terrain, and just place pylons on it. Also, you'd need a pylon for each player stacked there.
OR you can also put a Machine Shop, and then stack the pylons there...

How do you intend to do this?
I've thought a LOT about this too XD...

One way to do it is to use various sizes of 2 by x locations, where "x" would be 6, 10, 14, etc.
However, if you do this, I couldn't figure out a way to make the bomb explosions "stop" at the walls
We can't use burrowed units for grids, because we need to Build cannons on the terrain..
If we use Observers it'd just look awkward (but might work) :S
What about destroyable walls? like in real bomberman... you destroy the walls to get to the other players OR get powerups.

So tell us.. how'd u intend to do this??

...
As for the Special Bombs... Use your own creativity.. However there're a few you can probably copy from the original Bomberman

1. Spike Bomb - Explosion goes through destoryable walls..
2. Mine bomb - Explodes 1 second after someone walks over it/a bomb explodes on it.
3. Jelly Bomb (probably untriggerable) - When you kick/throw these bombs, they bounce around..
4. Death bomb - made by combining two jelly bombs together.. to do it, you kick two bombs in the same direction, and when one bounces back, they meld together .. the deathbomb covers a 3x3 radius, rather than the typical cross like explosions.
5. detector? bomb - When placed near someone, the bomb follows that person. the Only way to stop the bomb following you is to place a bomb so that it blocks it... this is only seen on the SNES version (from what I know)

you can probably do a Shrapnel Bomb, where when the bomb explodes, interceptors come out in all directions. Interceptors will be destroyed if they touch any walls... (saay you can probably do this for your normal bombs.. just order interceptors on each direction .....).. so these bombs would be more effective on wall-less areas

EDIT: I doubt you can do those throwing/kicking .. and fast running triggers.... The multiple bomb powerups is ez.. just make cannons = 1 mineral.. and just set your amount of minerals.... :\ ... +add 1 everytime your cannons explode =D. +1 everytime you get a +1 bomb powerup.
The curses, however, you can do ... altho passing it to other players would be a difficult trigger to do too.

Yea, I might use machine shop walls but I kinda wanted something the player can build. As for the wall thing, I was originally thinking switches with lots of conditions. However, it's important to know the epicenter of the blast so I thought about leaving the bomb until the explosion reaches its widest radius. Basically, it'll go like this: If machine shop at location X, create explosion but don't set the next tile. If there is no machine shop, create an explosion and set the neighboring tile. The only problem with this is that if two bombs are laid close to each other, one bomb will kill the other's bomb and stop the explosions. So I have to think about that. Like you said, I could use observers. I think creating units will get messy though, especially since I'll have other units running around (computers). That, and layered with powerups, the whole blast radius thing might get messy, which is why I wanna figure out what's going in b4 I start.

... You do know that a bomberman map has already been made, right?

Many Bomberman maps have been made. It's just that most of them suck.

And in Bomberman, you can't construct walls. It's just whoring power-ups until you have enough to out run and/or out plant your enemy.