| 
 
			
				
					| name | sourcefile | sampleof | isbios | isdevice | ismechanical | runnable | description | year | manufacturer | cloneof | romof | MachineGenreId |  
					| gussun | irem/m90.cpp |  | no | no | no | yes | Gussun Oyoyo (Japan) | 1993 | Irem | riskchal | riskchal | Puzzle / Drop |  
 | 
		| rom
			
				
					| name | size | crc | sha1 | region | offset | status | optional | merge | bios |  
					| l4_a-h0.ic77 | 262144 | 9d585e61 | e108a9dc2dc1b75c1439271a2391f943c3a53fe1 | maincpu | 1 | good | no |  |  |  
					| l4_a-l0.ic79 | 262144 | c7b4c519 | 44887ccf54f5e507d2db4f09a7c2b7b9ea217058 | maincpu | 0 | good | no |  |  |  
					| l4_a-sp.ic33 | 65536 | bb80094e | 1c62e702c395b7ebb666a79af1912b270d5f95aa | soundcpu | 0 | good | no | l4_a-sp.ic33 |  |  
					| rc_c0.ic81 | 524288 | 84d0b907 | a686ccd67d068e5e4ba41bb8b73fdc1cad8eb5ee | gfx1 | 0 | good | no | rc_c0.ic81 |  |  
					| rc_c1.ic82 | 524288 | cb3784ef | 51b8cdc35c8f3b452939ab6023a15f1c7e1a4423 | gfx1 | 80000 | good | no | rc_c1.ic82 |  |  
					| rc_c2.ic83 | 524288 | 687164d7 | 0f0beb0a85ae5ae4434d1e45a27bbe67f5ee378a | gfx1 | 100000 | good | no | rc_c2.ic83 |  |  
					| rc_c3.ic84 | 524288 | c86be6af | c8a66b8b38a62e3eebb4a0e65a85e20f91182097 | gfx1 | 180000 | good | no | rc_c3.ic84 |  |  
					| rc_v0.ic30 | 262144 | cddac360 | a3b18325991473c6d54b778a02bed86180aad37c | m72 | 0 | good | no | rc_v0.ic30 |  |  
 | 
		| chip
			
				
					| type | tag | name | clock |  
					| cpu | maincpu | NEC V35 | 16000000 |  
					| cpu | soundcpu | Zilog Z80 | 3579545 |  
					| audio | speaker | Speaker |  |  
					| audio | ymsnd | YM2151 OPM | 3579545 |  
					| audio | dac | 8-Bit R-2R DAC |  |  
 | 
		| control
			
				
					| type | player | buttons | ways | reverse | minimum | maximum | sensitivity | keydelta | ways2 | ways3 | reqbuttons |  
					| joy | 1 | 2 | 8 | no |  |  |  |  |  |  |  |  
					| joy | 2 | 2 | 8 | no |  |  |  |  |  |  |  |  
 | 
		| device_ref
			
				
					| name |  
					| v35 |  
					| z80 |  
					| screen |  
					| gfxdecode |  
					| palette |  
					| speaker |  
					| generic_latch_8 |  
					| rst_neg_buffer |  
					| m72_audio |  
					| ym2151 |  
					| dac_8bit_r2r |  
 | 
		| dipswitch
			
				
					| name | tag | mask |  
					| Lives | DSW | 3 |  
					| Difficulty | DSW | 12 |  
					| Unknown | DSW | 16 |  
					| Unknown | DSW | 32 |  
					| Demo Sounds | DSW | 64 |  
					| Service Mode | DSW | 128 |  
					| Flip Screen | DSW | 256 |  
					| Unknown | DSW | 512 |  
					| Coin Slots | DSW | 1024 |  
					| Coin Mode | DSW | 2048 |  
					| Coin A | DSW | 12288 |  
					| Coin B | DSW | 49152 |  
					| Coinage | DSW | 61440 |  
 | 
		| display
			
				
					| tag | type | rotate | width | height | refresh | pixclock | htotal | hbend | hbstart | vtotal | vbend | vbstart | flipx |  
					| screen | raster | 0 | 320 | 240 | 60.000000 |  |  |  |  |  |  |  | no |  
 | 
		| driver
			
				
					| status | emulation | savestate | requiresartwork | unofficial | nosoundhardware | incomplete | cocktail |  
					| good | good | supported | no | no | no | no | preliminary |  
 | 
		| input
			
				
					| players | coins | service | tilt |  
					| 2 | 2 | yes | no |  
 | 
		| port
			
				
					| tag |  
					| :DSW |  
					| :P1_P2 |  
					| :P3_P4 |  
					| :SYSTEM |  
 | 
		| sound
 |