There should only be a lag when you get the game over; please let me know if you get it any other time. That lag is due to submitting the score to Kongregate.
Hi! Sorry you lost your save. The save file is stored on your own PC, and deleting cookies, running CCleaner, or using addons like BetterPrivacy will delete it. If your browser crashes during the autosave it might also delete the file (with Chrome some people have said restarting their PC recovered it, but that won't work if you've already saved over it). You also need to make sure Flash is allowed to store data at all, from the right click, settings menu in game.
 "Just blowing things up (and chatting"){kind=icon}
 "My \"Dear\" Boss"){kind=icon}
 "epic minecraft quiz! With playable slimes! (beta)"){kind=icon}
 "random number- 360 version"){kind=icon}
 "The Most Random and Pointless Game You will Ever Play"){kind=icon}
 "Holiday Block Breaker"){kind=icon}
 "Nameless"){kind=icon}
 "flying waffle"){kind=icon}
 "Pingy the Ping Idle RPG"){kind=icon}
 "One and One Story"){kind=icon}
 "Dreamsong Catcher"){kind=icon}
 "Help the Hero"){kind=icon}
 "The only game better than Fancy Pants"){kind=icon}
 "Step Seq."){kind=icon}
 "Lead for Dead: Call of the Dead"){kind=icon}
Thx man!