Sonic The Hedgehog (Mega Play) - mame (0280) machine

MAME: 0280 - Released: 2025-08-29T22:26:57 - Lists: 731 - Software: 139884 - rom: 235974 - disk: 11384

machine

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name	sourcefile	sampleof	isbios	isdevice	ismechanical	runnable	description	year	manufacturer	cloneof	romof
mp_sonic	sega/megaplay.cpp		no	no	no	yes	Sonic The Hedgehog (Mega Play)	1993	Sega		megaplay

display

tag	type	rotate	width	height	refresh	pixclock	htotal	hbend	hbstart	vtotal	vbend	vbstart	flipx
megadriv	raster	0	1280	224	59.922742								no

driver

status	emulation	savestate	requiresartwork	unofficial	nosoundhardware	incomplete	cocktail
imperfect	good	unsupported	no	no	no	no

rom

name	size	crc	sha1	region	offset	status	optional	merge	bios
ep15294.ic2	131072	aa8dc2d8	96771ad7b79dc9c83a1594243250d65052d23176	mtbios	0	good	no	ep15294.ic2	ver1
epr-a15294.ic2	131072	f97c68aa	bcabc879950bca1ced11c550a484e697ec5706b2	mtbios	0	good	no	epr-a15294.ic2	ver2
ep15177.ic2	262144	a389b03b	8e9e1cf3dd65ddf08757f5a1ce472130c902ea2c	maincpu	0	good	no
ep15176.ic1	262144	d180cc21	62805cfaaa80c1da6146dd89fc2b49d819fd4f22	maincpu	1	good	no
ep15175-01.ic3	32768	99246889	184aa3b7fdedcf578c5e34edb7ed44f57f832258	user1	0	good	no
315-5661.ic7	279	d8289e31	a0e9134d9e8043a3660a2ce122cfd5d7f76773b9	plds	0	baddump	no	315-5661.ic7
315-5653.ic56	279	fd5c4fb3	6b2ba657836f3031d77602526416200e31d41a6e	plds	117	baddump	no	315-5653.ic56
315-5651.ic8	279	55c6cddb	e1a968305ca7ea17e9021b31506ca087b84a8ab1	plds	22e	baddump	no	315-5651.ic8
315-5349a.ic54	260	825ea316	f49edb6a3f9349330f7ff525ef60517ed276a663	plds	345	baddump	no	315-5349a.ic54
315-5654.ic33	260			plds	449	nodump	no
315-5655.ic34	260	4a2d27d1	ba79183e4b522d1b57a46a56fc7d9b85de24df36	plds	54d	baddump	no	315-5655.ic34

chip

type	tag	name	clock
cpu	maincpu	Motorola MC68000	7670453
cpu	genesis_snd_z80	Zilog Z80	3579545
cpu	mtbios	Zilog Z80	3579540
audio	gen_vdp	Sega 315-5313 Megadrive VDP	53693175
audio	gen_vdp:snsnd	Sega VDP PSG	3579545
audio	speaker	Speaker
audio	ymsnd	YM2612 OPN2	7670453
audio	vdp1	Sega 315-5246 SMS2 VDP	10738620
audio	vdp1:snsnd	Sega VDP PSG	3579540

device_ref

name
m68000
timer
sega315_5313
palette
segapsg
palette
palette
palette
screen
z80
ipt_merge_any_hi
megadrive_io_port
megadrive_io_port
megadrive_io_port
speaker
ym2612
z80
cxd1095
cxd1095
sega315_5246
palette
segapsg

biosset

name	description	default
ver1	Mega Play BIOS (Ver. 1)	no
ver2	Mega Play BIOS (Ver. 2)	no

sound

channels
1

feature

type	status	overall
graphics	imperfect

input

players	coins	service	tilt
2	2	yes	no

control

type	player	buttons	ways	reverse	minimum	maximum	sensitivity	keydelta	ways2	ways3	reqbuttons
joy	1	3	8	no
joy	2	3	8	no

port, analog

port_tag	analog_masks
:COIN
:DSW0
:DSW1
:PAD1
:PAD2
:TEST

dipswitch

Coin slot 1

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Coin slot 1	DSW0	15

location

name	number	inverted
SW1	1	no
SW1	2	no
SW1	3	no
SW1	4	no

value

name	value	default
4 Coins/1 Credit	7	no
3 Coins/1 Credit	8	no
2 Coins/1 Credit	9	no
2 coins/1 credit - 5 coins/3 credits - 6 coins/4 credits	5	no
2 coins/1 credit - 4 coins/3 credits	4	no
1 Coin/1 Credit	15	yes
2 Coins/3 Credits	6	no
1 Coin/2 Credits	14	no
1 Coin/3 Credits	13	no
1 Coin/4 Credits	12	no
1 Coin/5 Credits	11	no
1 Coin/6 Credits	10	no
1 coin/1 credit - 5 coins/6 credits	3	no
1 coin/1 credit - 4 coins/5 credits	2	no
1 coin/1 credit - 2 coins/3 credits	1	no
Free Play	0	no

Coin slot 2

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Coin slot 2	DSW0	240

location

name	number	inverted
SW2	1	no
SW2	2	no
SW2	3	no
SW2	4	no

value

name	value	default
4 Coins/1 Credit	112	no
3 Coins/1 Credit	128	no
2 Coins/1 Credit	144	no
2 coins/1 credit - 5 coins/3 credits - 6 coins/4 credits	80	no
2 coins/1 credit - 4 coins/3 credits	64	no
1 Coin/1 Credit	240	yes
2 Coins/3 Credits	96	no
1 Coin/2 Credits	224	no
1 Coin/3 Credits	208	no
1 Coin/4 Credits	192	no
1 Coin/5 Credits	176	no
1 Coin/6 Credits	160	no
1 coin/1 credit - 5 coins/6 credits	48	no
1 coin/1 credit - 4 coins/5 credits	32	no
1 coin/1 credit - 2 coins/3 credits	16	no
1 coin/1 credit	0	no

Initial Players

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Initial Players	DSW1	3

location

name	number	inverted
SW3	1	no
SW3	2	no

value

name	value	default
1	3	no
2	2	no
3	1	yes
4	0	no

Difficulty

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Difficulty	DSW1	12

location

name	number	inverted
SW3	3	no
SW3	4	no

value

name	value	default
Easy	8	no
Normal	12	yes
Hard	4	no
Hardest	0	no