Auto-Fire...
	Level password...
	Passwords...
	Power Points...
	Weapon power-up...

For this cheat, you will need the Famicom 4-Player Adaptor. (The Four-Score of the NES system will not work for this!) Press and hold B on Controller 4, then Reset the console. Then hold B on Controller 1 and the ship will always fire.

T Y 1 9 U - level 23

Level - Password
2 - 73Q17
3 - E3QG3
4 - L3QG3
5 - S3QG3
6 - Z3QG3
7 - I3QG3
8 - P3QG3
9 - W3QG3
10 - 33QG3
11 - A3QG3
12 - H3QG3
13 - U3QG3
14 - 53QG3
15 - K3QG3
16 - F3QG3
17 - 13QG3
18 - 63QG3
19 - 83QG3
20 - D3QG3
21 - M3QG3
22 - R3QG3
23 - TY2NU

Enter these codes to get more points:

1.)ZESNLLLE--10 power points
2.)GOSNLLLA--20 power points
3.)TOSNLLLE--30 power points

Hold B until a beep is heard. Release B to release a more powerful shot.