Galaga

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Galaga.png

Galaga is a fixed-screen space shooter. Your ship remains on the bottom of the screen while enemy ships fly around the screen dropping bombs on you and trying to smash into you. Every four stages is a challenge stage where you can't get hit, but you can rack up points to earn a free guy.

Memory Offsets

00B0 - Bullet Flag
00E0 - Score 9xxxxxx
00E1 - Score x9xxxxx
00E2 - Score xx9xxxx
00E3 - Score xxx9xxx
00E4 - Score xxxx9xx
00E5 - Score xxxxx9x
00E6 - Score xxxxxx9
00F8 - High Score 9xxxxxx
00F9 - High Score x9xxxxx
00FA - High Score xx9xxxx
00FB - High Score xxx9xxx
00FC - High Score xxxx9xx
00FD - High Score xxxxx9x
00FE - High Score xxxxxx9
0400-0409 - Enemies In Place Flag - Row 1
040F - Offset Row 1
0410-0419 - Enemies In Place Flag - Row 2
041F - Offset Row 2
0420-0429 - Enemies In Place Flag - Row 3
042F - Offset Row 3
0430-0439 - Enemies In Place Flag - Row 4
043F - Offset Row 4
0440-0449 - Enemies In Place Flag - Row 5
044F - Offset Row 5
0482 - Display Stage ?
0483 - Stage ?
0485 - Display Lives
0487 - Lives