I've tried to convert CreamBees games and aswell as others ones but most of them just show loads of randoms frames and don't allow you to play, is it normal or is there a way to fix it?
The CreamBee flashes use ActionScript 2, which is unsupported. Has to be AS3 for it to work. The seemingly random frames are the main timeline of the swf file being shown on repeat since the player doesn't recognize any stop() code.
http://boards.swfchan.net/23631/index.shtml
