Gradius (Bubble System)
Game Information
manufacturer | Konami |
year | 1985 |
genre | Shoot-'Em-Up |
downloads | 16 |
Screenshots










Download Details
split set | gradiusb.zip 112.93k |
bios/device | bubsys.zip 7.76k ↗ |
merged set | gradiusb.7z 99.11k |
standalone set | gradiusb.7z 106.18k |
Driver Details
source | konami/nemesis.cpp |
status | preliminary |
emulation | good |
savestate | unsupported |
type | protection |
status | imperfect |
Series Details
Screen Details
display | screen |
type | raster |
orientation | horizontal |
width | 256px |
height | 224px |
refresh | 60.61mhz |
Input Details
player | 1 |
type | joy |
buttons | 3 |
directions | 8 |
player | 2 |
type | joy |
buttons | 3 |
directions | 8 |
Chipset Details
name | Motorola MC68000 |
clock | 8.79mhz |
name | Zilog Z80 |
clock | 1.71mhz |
name | Speaker |
clock | N/A |
name | AY-3-8910A PSG |
clock | 1.71mhz |
name | AY-3-8910A PSG |
clock | 1.71mhz |
name | RC Filter |
clock | N/A |
name | RC Filter |
clock | N/A |
name | RC Filter |
clock | N/A |
name | RC Filter |
clock | N/A |
name | K005289 SCC |
clock | 3.41mhz |
name | Sanyo VLM5030 |
clock | 3.41mhz |
ROM Details
name | size | crc |
---|---|---|
boot.bin | 480.00b | f0774fc2 |
gradius.bin | 288.84k | f83b9607 |
mcu | 4.00k | nodump |
400b03.8g | 8.00k | 85c2afc5 |
400a1.2b | 256.00b | 5827b1e8 |
400a2.1b | 256.00b | 2f44f970 |