Help me! (making a game)

1

I want to make a game where the character is on bottom of the screen and can move left and right (with the respective arrow keys) while things from fall down from the top of the game randomly. I would like it so when the character collides with certain items falling from the sky, it gains points. While if it collides with other items, it loses lives. I have gotten the character to move but then in moves everything in the window, not just the character. If anyone has a way to make just the character move, could you please tell me. I also need a way to make things fall randomly from the sky… I couldn’t find anything in the tutorials. I need help… this is my first game.