Scrolling with the mouse wheel on the Linux version of Firefox doesn't work. It scrolls the page instead. Yes, Flash has focus. Maybe it would if I could fullscreen it somehow (or go to the SWF URL directly).
These are not really cursors. Actually, these would be impossible to export into a .cur or .gif. This game just hides your own cursor and draws animations around it. The only "way" is to make a transparent Flash applet (which isn't possible) that follows your cursor.
 "Polygonal Fury"){kind=icon}
 "Async Racing"){kind=icon}
 "Chaos Faction 2"){kind=icon}
 "Bloons Tower Defense 4"){kind=icon}
 "Perfect Balance 3"){kind=icon}
 "Cursor Catalog 2"){kind=icon}
 "Frontline Defense First Assault"){kind=icon}
 "rlax"){kind=icon}
 "Desktop TD Pro"){kind=icon}
 "Switch"){kind=icon}
 "Recoil 1.3: Noobs Edition"){kind=icon}
 "Neo Tower Defense"){kind=icon}
 "! Music Mania !"){kind=icon}