Do you play on the same computer as somebody else? Try changing the account, or deleting the browser saved files, or simply play it in a different browser.
I do like the 8 bit style, but I think a more fully fleshed version would really shine on Steam. The menu system can even work with consoles. I would totally do all the new art and port this to XNA myself... the game really deserves better than this tiny box on Kong.
 "Super Stacker 2"){kind=icon}
 "The Everloom"){kind=icon}
 "Battalion Commander 2"){kind=icon}
 "Where is 2014?"){kind=icon}
 "Into Space 3: Xmas Story"){kind=icon}
 "Glean 2 Preview"){kind=icon}
 "Candle Man"){kind=icon}
 "Deadly Road Trip"){kind=icon}
 "Strand"){kind=icon}
 "Ending"){kind=icon}
 "Flash NetHack"){kind=icon}
 "Red Rogue"){kind=icon}
 "Hyperpath"){kind=icon}
Do you play on the same computer as somebody else? Try changing the account, or deleting the browser saved files, or simply play it in a different browser.