This is a <canvas>-based clone of Amiga/MSDOS game "Syndicate" ("Enterprise", get it? ;).
The game is not finished — the initial version was written in 24 hours. Click to walk around and press space to shoot stuff. Weapons are given randomly. There are some cheats (click settings).
Try Opera or Webkit for speed, or Firefox if it plays nice on your machine
Works on mobile too! In WebKit it supports multitouch trackpad scrolling. Works on iDevices, albeit slowly (iOS3 is useless, iOS4 is tolerable).