Balloon Fight (NES)/RAM map

The following article is a RAM map for Balloon Fight (NES).

Data for "Balloon Fight (JU) [!].nes". Incomplete.

Table

RAM	Type	Additional info
0x0002	video	Set to 1 in the NMI handler. The main thread uses this to detect that a video frame has ended.
0x0016	mode	00 if in "Balloon Fight" mode, 01 if in "Balloon Trip" mode.
0x0019	counter	Incremented every frame. At the title screen, when this turns FF->00, the demo starts; pressing Select sets it back to 0.
0x003F	coord y	The cursor's current selected option on the title screen.
0x00F9/C	p1 audio	seems to be some kind of player 1 audio thing
0x0078/F	sprite	1 for upward thrust (you can still move upwards when this is 0), 0 for no thrust, 3 for on the floor, 2 for walking left or right, 4 for breaking
0x0090	coord x	x coordinate of player 2
0x0091	coord x	x coordinate of player 1
0x0092/9	coord x	x coordinates of other players (max 9)
0x009B	coord y	y coordinate of player 1
0x009C/A3	coord y	y coordinates of other players
0x00D0/FF	sound	Sound effects and music related.
0x00E8/EB	sound	pointer to offset within pattern data; increments by 1 for each "row"
0x0100/E7	stack	This part appears not to change over the course of a game and is probably unused.
0x01E8/FF	stack	Function calls and saved registers come and go here.
0x0200/FF	sprite	Sprite display list in OAM format, which the NMI handler copies to the PPU
0x0300/FF	video	Apparently a circular list of tiles to draw to the background.
0x0400/8	coord x	x coordinates of players, fractional part
0x0409/11	speed	y coordinates of players, fractional part
0x0412/C	speed	y velocities of players, fractional part
0x041B/23	speed	y velocities of players, integer part (usually $00: positive or $FF: negative)
0x0424/C	speed	x velocities of players, fractional part
0x042D/35	speed	x velocities of players, integer part (usually $00: positive or $FF: negative)
0x0490/1	coord x	spark x
0x04A4/5	coord y	spark y
0x051C/D	speed	spark speed
0x0530/1	sprite	spark image