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Old TC0480SCP bg layer priority table (kept for reference)

	mb = seen during metal black game
	ss = seen during slap shot game
	{ 0, 1, 2, 3, },	// 0x00  00000  mb ss [text screens, but Deadconx confirms layer order]
	{ 0, 1, 2, 3, },	// 0x01  00001
	{ 0, 1, 2, 3, },	// 0x02  00010
	{ 0, 1, 2, 3, },	// 0x03  00011  mb    [all boss dies]
	{ 0, 1, 2, 3, },	// 0x04  00100
	{ 0, 1, 2, 3, },	// 0x05  00101
	{ 0, 1, 2, 3, },	// 0x06  00110
	{ 0, 1, 2, 3, },	// 0x07  00111
	{ 0, 1, 2, 3, },	// 0x08  01000
	{ 0, 1, 2, 3, },	// 0x09  01001
	{ 0, 1, 2, 3, },	// 0x0a  01010
	{ 0, 1, 2, 3, },	// 0x0b  01011
	{ 3, 0, 1, 2, },	// 0x0c  01100  mb    [round3 boss; bg0 undefined (was 0312)]
	{ 3, 0, 1, 2, },	// 0x0d  01101
	{ 3, 0, 1, 2, },	// 0x0e  01110
	{ 3, 0, 1, 2, },	// 0x0f  01111  mb    [second part of round5]
	{ 3, 2, 1, 0, },	// 0x10  10000  mb ss [round 6 start (was 3012; 0/1 or 1/0?)]
	{ 3, 2, 1, 0, },	// 0x11  10001     ss (1/0 or 0/1?)
	{ 3, 2, 1, 0, },	// 0x12  10010  mb    [round1 start]
	{ 3, 2, 1, 0, },	// 0x13  10011  mb    [final boss, round2/4 start & demo bonus] (2/1 then 0, bg3 undefined)
	{ 0, 1, 2, 3, },	// 0x14  10100  mb    [copyright screen, bg0 undefined]
	{ 0, 1, 2, 3, },	// 0x15  10101
	{ 0, 1, 2, 3, },	// 0x16  10110
	{ 0, 1, 2, 3, },	// 0x17  10111  mb    [round4 boss; bg0/1 undefined]
	{ 0, 1, 2, 3, },	// 0x18  11000
	{ 0, 1, 2, 3, },	// 0x19  11001
	{ 0, 1, 2, 3, },	// 0x1a  11010
	{ 0, 1, 2, 3, },	// 0x1b  11011
	{ 0, 3, 2, 1, },	// 0x1c  11100  mb    [late round 3; bg1/2/3 posns interchangeable (was 0123)]
	{ 0, 3, 2, 1, },	// 0x1d  11101
	{ 0, 3, 2, 1, },	// 0x1e  11110  mb    [first part of round5]
	{ 0, 3, 2, 1, },	// 0x1f  11111  mb    [first part of round3]
};

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