7168-D5F6 + C668-D596 Start with 10 lives
C868-D5F6 + C068-D596 Start with 12 lives
CF68-D5F6 + EF68-D596 Start with 14 lives
49E68-D5F6 + C068-D596 Start with 16 lives
3CCA-D4DD Infinite lives
7168-D70F + C668-D76F Continue with 10 lives
C868-D70F + C068-D76F Continue with 12 lives
CF68-D70F + EF68-D76F Continue with 14 lives
9E68-D70F + C068-D76F Continue with 16 lives
DFB6-DF6D Start with cannon power at level 2 instead of 1
D4B6-DF6D Start with cannon power at level 3
D7B6-DF6D Start with cannon power at level 4 
D9B6-DF6D Start with cannon power at level 6 
D5B6-DF6D Start with cannon power at level 8
DBB6-DF6D Start with cannon power at level 10
D8B6-DF6D Start with cannon power at level 12
DF68-DF0F + DE68-DD6F Continue with cannon power at level 2 instead of 1
D468-DF0F + DE68-DD6F Continue with cannon power at level 3 
D768-DF0F + DE68-DD6F Continue with cannon power at level 4
D968-DF0F + DE68-DD6F Continue with cannon power at level 6
D568-DF0F + DE68-DD6F Continue with cannon power at level 8
DB68-DF0F + DE68-DD6F Continue with cannon power at level 10
D868-DF0F + DE68-DD6F Continue with cannon power at level 12
DAB6-D76D + FDB6-D4AD Start equipped with unguided missiles
7D6C-D40F + 2C6C-D46F + FD6C-D7DF Continue equipped with unguided missiles
DDC7-DD0F Loss of a life does not decrease cannon power at normal 
difficulty--except on continues 
DDC0-D4DF Loss of a life does not decrease cannon power at hard difficulty--except 
on continues
DA3D-6464 Pink power-up increases missile power along with cannon power