Hold the following buttons before the corresponding level begins to start with a special weapon.

Level	Code
1	Down
2	Weapon 1
3	Up/Right + Weapon 1 + Weapon 2
4	Down/Left + Weapon 2
5	Weapon 1
6	Left
7	Up/Left
8	Left + Weapon 1 + Weapon 2
9	Down/Right + Weapon 1 + Weapon 2
10	Up/RIght + Weapon 2
11	Up/Left
12	Right + Weapon 1+ Weapon 2
13	Up
14	Up/Left + Weapon 1 + Weapon 2
15	Down/Left + Weapon 1
16	Right + Weapon 1