I am desperately looking for a game from my youth.
I played a vertical shooter in Sweden in maybe 1986, and later in Italy in 1989 (Union Lido, Cavallino). The game must be from approximately 1980-83, and is situated in space. The graphics are blocky. All sprites have just 1 colour, and I guess the game has an 8 colour palette. The background is black, but now and then you get a "hyperspace mode", and the screen background flashes red.
I believe that you control a white ship, and the enemies are yellow, pink etc. I think that the enemy sprite is changed into a score number (e.g. 800 points) when you kill it. I believe that yellow gave the most points (1000?).
I haven't seen the game since 1989, so it isn't easy to remember everything. But the screen definitely flashes red when you get "hyperspace" or "warp speed".
I have checked Arcadeflyers, KLOV and MAME screenshots, but can't find the game. I have even asked in other forums, but have still not found it. The closest I have come is that the game may be Enigma, but I have only been able to find a screenshot from Enigma 2. Can anyone help me?
Here is a mockup of what it looked like. Don't laugh!

