This game seems to be quite severely bugged at the moment, haven't looked into why yet... Use WASD to move. Why does the refresh thing sometimes work and sometimes not...? ¬_¬ if you're not walking up slopes correctly, reload the page and try again. the dying doesn't work at all btw :P I think I might revert back to the other version of this/stop all together... it seems to be all going a bit crazy...
