Galaxian Hsck Notes

2640@05 04  to 08 Speed of bullets

Hex Offset 2540 @ 05: This is the speed of the bullets. The standard value is 04. 
Values from 01 to 08 work. 01 slowest, 08 turbo hell fast.
00 refuses to fire bullets, but makes the sound.
10 doesn;t hit the middle row of aliens
Highest value that works is 0C, if not also setting { 25B0 @ 0E }

25B0 @ 0E : Original value 04. CHanging this, in conjunction with values in 2640@05 also affects speed.
It seems to multiply the value, and also affect the offset of bullets, as they can;t hir certain rows. 
Setting this to 06 with 2640@05 set to 0C, causes the GUN NEVER TO FIRE!
A value of 05 and 0C crashes the game.

0C and 0A make hyper-turbo

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