There's a hint for you: "If you press the wrong button, the items and you will be died!, If you press the good button, the gate will be open, There are Spikeys in that adventure."
Solution: (Don't read this if you want to find out by yourself!)
Download Link: Click me!1: X (4)
2: X (1)
3:
4: X ( 8 )
5:
6:
7: X (7)
8: X (3)
9: X (2)
10: X (10)
11: X (9)
12: X (5)
13: X (6)
2 9 8 1 12 13 7 4 11 10