This is DWANGO EXTENDER shareware, full version of which gives you lots of good emotions, fun,laugh,makes you think more, discover new amazing things . May totally change coop and deathmatch strategies of Doom 2 . hahahaah Sorry. Shortly, makes Dwango step into the next generation of FUN. NOTE : if you don't have Dwango access, no problem. It supports modem-to-modem and single player modes as well. Requires: DOOM ][ ver. 1.9 and sound card. UNZIP DES200.ZIP into temporary directory , then read READTHIS.NOW VERY CAREFULLY.