Animal Sudoku - Sudoku-colored footprints, traditional with numbers, or black footprints!

Instructions: Each style starts with an initial score and goes down from the time you start the game, so think fast. Click a footprint or number in the left toolbar to place it onto the game board. Fill 11 empty squares so that the numbers 1 to9(or corresponding items, starting with "I" at the top) appear once in each row, column, and 3x3 box. If you make a mistake use the Eraser to delete any item you have placed on the game. Use clear all to erase all items you have placed on the game board so far in the current game.