Removes the instructions which would otherwise take a life away, and end the game when there are none left.

CA18	DEC (HL)
CA19	JP M,B761

To:

CA18	NOP
CA19	NOP
CA1A	NOP
CA1B	NOP

Makes DecrementLightYears return straight away, so that the light years remaining counter is never counted down.

ADC9	LD HL,5B39

To:

ADC9

RET