sprite guide 
UP |RT |DN |LF
0  |0  |0  |0 
0  |0  |0  |1 
0  |0  |1  |0 
0  |0  |1  |1 
0  |1  |0  |0 
0  |1  |0  |1 
0  |1  |1  |0 
0  |1  |1  |1 
1  |0  |0  |0 
1  |0  |0  |1 
1  |0  |1  |0 
1  |0  |1  |1 
1  |1  |0  |0 
1  |1  |0  |1 
1  |1  |1  |0 
1  |1  |1  |1 