* Power meters:
1) Option 1: Nemesis
- Missile: Falls to the ground, then slides along it until it hits something.
- Double: Fires a bullet at 45 degrees up as well as forward.
- Laser: Replaces your bullets with a blue beam.
2) Option 2: Mega-Destruction
- Spread Bomb: Large explosion of death.
- Tail Gun: Fires backwards as well as forwards.
- Laser: The infamous Toothpaste Laser.
3) Option 3: The Third Way
- Photon Torpedo: Similar to standard missile, but goes straight through enemies.
- Double: Fires a bullet at 45 degrees up as well as forward.
- Pulse: Salamander's ripple laser.
4) Option 4: Salamander
- 2-Way: Bombs fall up and down.
- Tail Gun: Fires backwards as well as forwards.
- Pulse: Salamander's ripple laser, in a nice shade of red.

0.36b8 [Phil Stroffolino, Nao, Dave Spicer]
0.36b5 [Phil Stroffolino]

Artwork available

Bugs:
- gradius2, gradius2a, gradius2b, vulcan, vulcana, vulcanb: Title screen demo plays the stages in the wrong order. gamestone (ID 03759)
- vulcan, gradius2, gradius2a, gradius2b: Sprite-background priority is wrong. Kanikani (ID 02523)

WIP:
- 28th May 2012: Mr. Do - Thanks to Gamestone at Gradius Home World, we have totally awesome cocktail artwork for clone Gradius II.
- 0.143u8: Kanikani fixed DIPSW and added DIP locations to clones Gradius II.
- 0.134u2: Irongiant added clone Vulcan Venture (Old). Changed description to 'Vulcan Venture (New)' and clone 'Vulcan Venture (Older Ver.)' to 'Vulcan Venture (Oldest)'. Renamed (vulcana) to (vulcanb).
- 0.134u1: Brian Troha and Dumping Union added clone Vulcan Venture (Older Ver.).
- 0.133u2: hap fixed sprite lag in clone Gradius II. Reverted Gradius II sprite-background priority hack, this fixes severe priority problems in Devil World, but reintroduces bugs on gradius2 level 7 and ending. Also lowered the K007232 volume, this fixed defective sound in Vulcan Venture.
- 0.133u1: Renamed (grdius2a) to (gradius2a) and (grdius2b) to (gradius2b).
- 0.128u6: Roberto Zandona updated clone Gradius II - GOFER no Yabou (Japan New Ver.) to use proper gfx2 roms (same values of vulcan but byteswapped).
- 29th July 2008: Corrado Tomaselli dumped Gradius II - GOFER no Yabou (Japan New Ver.).
- 0.124u2: Changed clock speed of the 2x 68000 to 9216000 Hz and VSync to 60.606061 Hz.
- 0.110u2: Roberto Zandona and Mamesick fixed video hardware (draw_sprites, tilemap_draw etc.) in Vulcan Venture.
- 3rd September 2006: Mr. Do - Added instruction cards for Gradius II.
- 0.102u5: Pierpaolo Prazzoli fixed sprite drawing in Vulcan Venture.
- 0.99u4: Pierpaolo Prazzoli fixed background/sprites priority in the stage 7 of Vulcan Venture.
- 0.76u2: Changed description of the clones to 'Gradius II - GOFER no Yabou'.
- 0.62: Bryan McPhail fixed priority problems in Vulcan Venture.
- 0.56: Changed description of clones '(Japan set 1)' to '(Japan New Ver.)', '(Japan set 2)' to '(Japan Old Ver.)' and '(Japan set 3)' to '(Japan Older Ver.)'. Fixed rom names.
- 6th October 2001: Chack'n fixed the dipswitch settings in clone Gradius 2.
- 0.36b10: Changed Z80 CPU1 clock speed to 3579545 Hz.
- 0.36b8: Phil Stroffolino, Nao and Dave Spicer added Vulcan Venture (Konami 1988) and clones 'Gradius II - Gofer no Yabou (Japan set 1)', (Japan set 2) and (Japan set 3).
- 27th October 1999: Takahiro Nogi fixed UPD7759 problems in Vulcan Venture.
- 26th October 1999: Phil Stroffolino got collision detection working in Vulcan Venture with help from Dave Spicer and Nao.
- 21st October 1999: Phil Stroffolino sent in a Twin16 update, with Hard Puncher / Final Round being completely playable, but Vulcan Venture is still missing the collisions.
- 0.36b6: Phil Stroffolino added clone Gradius II - Gofer no Yabou (Japan) (Testdriver).
- 0.36b5: Phil Stroffolino added Vulcan Venture (Testdriver).
- 9th October 1999: Phil Stroffolino sent in a Twin16 update with working sprites in Vulcan Venture (but collisions are missing), and Final Round is also playable now.
- 8th September 1999: Phil Stroffolino sent in a very preliminary Konami Twin16 driver (Vulcan Venture for example), but nothing works yet.

ARCADE RELEASE: Gradius II (Konami) - 1988/Mar/24

LEVELS: 7 (gradius2)

Other Emulators:
* FB Alpha
* Sparcade

Romset: 2864 kb / 16 files / 854.9 zip