game developer

hi this is subrata i just wondering if its possible or not i will provide all the graphics and background and also i will provide the animation , you just need to code them and make a complete game let me write the details here the game is for promoting a song the duration will be 4 minutes 26 sec and in this duration there will be three levels and at the very begening the player will choose if he will play the easy or medium or difficult level then suppose in the easy level the player should kill 25 to 30 rats in the 4 minute 26 seconds timelimit then the gave will automatically over because there will be a time which will go backward like 4:26 to 00:00 (the same with the rest levels just those will be more difficult ) the basic idea is one girl will walking through road and some characters whose head are of rats and body will be of human will be coming from the opposite side of the girl and the girl will kill the characters thats it nothing to complicated