Blaster Master (USA)

[noswanson1982]

Don't Lose Gun
XTOAUTVK
XTOAUTUK

Once you gain gun pieces, you keep them (until you die).

[terpsfan101]

Looking at your "Don't Lose Gun" code for Blaster Master (USA) (NES). I noticed that both codes you posted have the same address:

The first one is a valid Game Genie code, the second one is not:

XTOAUTVK

address: 0x8E13
compare: 0xC6
value: 0xEA

XTOAUTUK

address: 0x8E13
compare: 0xC3
value: 0xEA

Also, it is probably a good idea to replace the EA (NOP) instruction in your valid code with the A5 (LDA Direct Page) instruction. You are going to be leaving a piece of left-over code afterwards that could be problematic if you NOP that address.