@nived13 that is because you clicked outside the game window while you pressed up/down/left/right (this happens always in most of games) for this u can hold down button (if he's going up) and press outside of the game window then press in the window...
you can make the sky bleed:first stack some ragdolls and make them bleed with a sword(crush the ragdolls)second open the right menu and able loop sides.finally just erase the ground and leave the cieling!(wait a little and it will begin slowly) + if worked for you!!
great here's one of the ways to have fun: leave only 2 cars on the track then make a deep hole just after it a giant mountain and you will get some fire works
i agree with x7Razacla7x cuz i found people who rune a universe and save it like Tetris theme song it belongs to Mystic Blade i found another universe called Tetris theme remake part2 what i found is the same tetris theme with oil spilled and bees with electros in the air wish made it sucks...(dragoncicu runed the tetris music!!)
i play thisn game long time ago but since last day(29/3/2012) all i see is a black screen the game window is empty no menu no reboot button nothing works!!
i found a guy who made a universe called lamp fix it's so simple he put some energy and then a heater wich is not for making lamps and in this game you can't make a lamp the correct way and he got 5/5 WTF it's sooooooo easy while some people like me who need hours to make a nice universe got 3/5 or 2.5/5 and those who have to save the game and come back tomorow 3.5/5 4/5 just look you will understand what i mean..