Alright, I'll take this honestly:
Me and my friend Esteban made this while music lesson. We took two markers (a red one and a blue one) and shared them. I took the red one and he took the blue one. Then, we drew characters one by one, taking turns. Now, I gotta admit one thing: inspiration comes better at two ;D
A few facts:
-There are exactly 20 characters: 9 red and 11 blue.
-The original version is in French. Anyone interested?
-This version of the drawing was redrawn on Photoshop CS3, and pasted on a blank, scanned page.
-This drawing was made by Martin Carlos Vichemino (Ogt2) and Esteban Prud'Homme (numero3). If you have any questions, remarks or anything to add, please post a comment or send me a PM. I'll accept it with joy :D

Character list (in drawn order):
1-Stare-Man (the guy looking at Mr.Flame)
2-Mr.Flame (burnt by Mafia Man's badly-hidden flamethrower)
3-Laughster (laughing at Mr.Flame / next to Dr.View)
4-Mafia Man (tried to hide his flamethrower in vain / next to Piss-Boy)
5-Piss-Boy (pissing on the ground / next to Mafia Man)
6-The Sniper (on the building aiming at the crowd / in front of Assassin)
7-Assassin (behind The Sniper, going to kill him)
8-Drunkie (drunk guy about to trip on rock, seen by Dr.View)
9-The Doorman (tripping towards the gambling den)
10-Dr.View (next to Laughster / can see the rock Drunkie's gonna trip on)
11-Complaining Dude (always complaining about the noise)
12-Splinter 455 (untrained / walked on rubber duckie / spotted by Donut Jim)
13-Donut Jim (spotted Splinter 455 / called his friend Coffee Bob about the case)
14-Splinter 007 (called Splinter 455 to announce the bad news :P)
15-Parachutist (falling next to Plane / forgot his parachute!! :D)
16-Pilot Clint + Plane (having an accident / next to Parachutist)
17-Doomsayer (watching Plane accident / on top of Mafia Man's flamethrower)
18-God (complaining about the echoes (see below))
19-The Gambler (in the gambling den, playing poker with Chair Joseph)
20-Chair Joseph (falling of his chair / used to be playing poker with The Gambler)

Now, God is complaining about the echoes. I know this is unclear, so I'll enlighten you:
First of, God is complaining about the "AAAAAAAH!!" "echoes". Here is a list of the people doing "AAAAAAAH!!", which forms an "echo":
1-The Doorman
2-Chair Joseph
3-Dr.View
4-Pilot Clint
5-Parachutist
6-Doomsayer

There you go! Comment, vote, the usual.
Enjoy! :D

-Ogt2