Special weapons (1943):
Hold the following buttons
before the indicated level begins.
Level --- Code
1 --- Down
2 --- A
3 --- Up/Right + A + B
4 --- Down/Left + B
5 --- A
6 --- Left
7 --- Up/Left
8 --- Left + A + B
9 --- Down/Right + A + B
10 --- Up/RIght + B
11 --- Up/Left
12 --- Right + A+ B
13 --- Up
14 --- Up/Left + A + B
15 --- Down/Left + A
16 --- Right + A
