New Magnet System and Niemer games at recreativas.org database

Hi, I added some entries of spanish arcade videogames at Recreativas.org database:

I updated 2 games for Magnet System (EFO):
Formula: http://www.recreativas.org/formula-2291-efosa
Sailing Race: http://www.recreativas.org/sailing-race-2290-efosa

An "virtual pinball" from Recreativos Presas, with ProPinball game licensed from Empire, and featured in 2005:
http://www.recreativas.org/pro-pinball-2421-recreativos-presas

But the game is intriguing me is 4 en Línea from Niemer (about 1981-82), I don't know if it was developed "in-house" or adapted from existing one:
http://www.recreativas.org/4-en-linea-294-niemer

If somebody has more info or images about Niemer and EFO games please let me know.
Regards!

[Posted by: dave00]