Just so you guys know, there's a manual time out button... it ends the current combo immediately. And you can get 10k in about 5 mins by just making a straight line of saws as low as you can and increasing turtle flow a bunch. It might be useful to leave a slight gap between 2 of the saws above where you hammer.
Great game! Really looking forward to the 4th one.
If you're having trouble beating the game for the first time, I recommend using Ling Hou. His staff has a long reach and pretty fast attacks, and his special and his forward kicks are awesome. Hope that helps!
Awesome game.... to get a high score on expert, lay down some barrels, and when they catch on fire, move around dropping barrels everywhere. Effect: all the barrels will instantly explode.... Good thing barrels can't hurt you =D