An experiment in cooperative gameplay mechanics for a 3D platformer (in this case SRB2).

• Cooperative HUD displaying teammate location and status information
• "Tagging" mechanics that require two players to damage enemies or collect special stage spheres
• Enemy Goal system requiring a certain percentage of enemies to be defeated in order to progress
• Team life sharing with revive mechanics tied to level progression (Starposts, Enemy Goal, etc.)
• Support for various AI bots like BuddyEx, ExAI, and foxBot
• Performance-focused with minimal script hooks, to remain playable on low-spec devices
• Highly configurable, with options to toggle all features

Use cdhelp to display this section in-game at any time.

MP Server Admin:

• cd_enemyclearpct - Required % of enemies for level completion
• cd_enemyclearmax - Maximum # of enemies for level completion
• cd_dmflags - Difficulty modifier flags
  • (1 = Enemies require 2+ hits from different players)
  • (2 = Spheres require 2 pickups from different players)
  • (4 = Special Stages restrict time based on player count)
  • (8 = Players reset their tagged enemy hits on death)
  • Note: These options can be combined by adding them together!
• cd_teamlives - Share team lives using goal-driven revive mechanics?
• cd_emeraldbonus - Award ring / shield bonuses on spawn w/ all emeralds?

MP Client:

• cd_showhud - Draw CoopOrDie info to HUD?
• cd_hudmaxplayers - Maximum # of players to draw on HUD
• pinplayer <player> - Pin player to HUD
• unpinplayer <player> - Unpin player from HUD ("all" = all players)
• listplayers - List active players