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Invinco / Head On 2 (set 2)

Game Information
manufacturer Sega
year 1979
Clone of invho2
genre Compilation
downloads 81
Screenshots
invho2a title
invho2a snap
invho2a howto
invho2a gameover
Download Details
split set invho2a.zip 14.96KiB
parent set invho2.zip 14.73KiB
merged set invho2.7z 13.70KiB
standalone set invho2a.7z 11.90KiB
Game Details

Arcade Video game published 44 years ago:

Special Dual II: Invinco + Head On 2 (c) 1980 Sega.

Head On 2 is a 2-D maze racing game. You control your car through the maze to pick up the dots while at the same time avoiding the car, or cars, that are constantly trying to ram you. Successfully get through one maze and many more await you. This is good practice for freeway driving in the big city.

Invinco is a game inspired by "Space Invaders" with some innovation on the aliens : One row blinks in and out of view, another row's aliens roll so as to make themselves harder or easier to hit, and a 3rd row of aliens each take (at least) 3 hits to kill. A 4th row has aliens that turn into bombs, blowing up everything around them to make your job somewhat easier.

- TECHNICAL -

Game ID : 271-286

Main CPU : Zilog Z80 (@ 1.93356 Mhz)
Sound Chips : Discrete circuitry

Players : 2
Control : 4-way joystick
Buttons : 2

- TRIVIA -

Released in March 1980.

- SCORING -

For Head On 2 :
Dots : 5 points X number of cars on field.
Diamonds : 25 points X number of cars on field.

For Invinco :
Bottom Blue Aliens : 100 points
White aliens : 200 points
Yellow aliens : 300 points
Light Blue Aliens : 400 points
Top Blue Aliens : 800 points
UFOs : 1,000 - 2,000 points

- TIPS AND TRICKS -

For Head On 2 :

* Always be aware of where the Jam Car(s) is/are located. They can only make one lane change at a time but that lane change may be into your lane.

* The faster you go, the fewer lanes you can cross. At full acceleration, you will only be able to change one lane at a time. In the earlier levels, this will be fine since you will only be dealing with one car. In the multiple Jam Car levels, this can be a very bad thing. Decelerate (take your finger off the accelerate button) to go across multiple lanes.

* The Jam Car(s) always travel in a clockwise motion while you travel in a counterclockwise motion. Remember that so that you don't get confused when there are multiple cars in the maze. Also, the color of the Jam Car is red while yours is white.

* Don't try to get all the dots on one of the lanes. You need to anticipate where your next move is well before you enter the lane change area since you cannot change lanes at any other time. Sometimes, on the earlier levels, it is best to do a staggered type dot pickup where you do lane one, change to lane two, to lane three, lane four, lane five, then back to lane one. If you time it right, the Jam Car or Cars will still be in the maze.

* Don't let the speed of the Jam Car(s) throw you. Just plan to be out of your lane and in the lane change area before them. If both cars enter at the same time, you run a big risk of a collision.

For Invinco :

Driver Details
source sega/vicdual.cpp
driver status preliminary
emulation status preliminary
save states supported
palette unemulated
sound imperfect
channels 1
Screen Details
display screen
type raster
orientation vertical
width 256
height 224
refresh rate 60.00hz
Input Details
player: 1
type joy
directions 4way
buttons 2way
Chipset Details
Zilog Z80 1.93mhz
Speaker present
Samples present
Discrete Sound present
ROM Details
name size crc
326.u33 1.00KiB 35bc6216
327.u32 1.00KiB 9484a3db
328.u31 1.00KiB 000cf180
329.u30 1.00KiB 12ce15c4
330.u29 1.00KiB 2f02f721
331.u28 1.00KiB 38f4ab51
332.u27 1.00KiB 94b1cacb
333.u26 1.00KiB 455a8f42
334.u8 1.00KiB 9c578f37
335.u7 1.00KiB 56df9e11
336.u6 1.00KiB 219b2513
337.u5 1.00KiB d6410227
338.u4 1.00KiB e4550755
339.u3 1.00KiB 426dd538
340.u2 1.00KiB aec47500
341.u1 1.00KiB 0b7a0607
pr-16.u49 32.00B 733eac6f
pr-34.u14 32.00B e60a7960
pr-33.u15 32.00B a1506b9d