Those ugly video cases and photocopied manuals are defintely from Telegames´ own stock.Every official Colecovision game should have a "normal" box.
I just bought some games on eBay with original boxes, but strange photocopied german manuals.These were produced in Berlin by a store called "CBS-Telespielshop Berlin".Here you can see an example:

Gruß an Dieter und alle Retro-Fans!
Ok, thanks guys, so I know that I can (theoretically) find every Colecovision game also in a normal cardboard box. The Telegames stuff really sucks.
Yes, I know that "CBS-Telespieleshop Berlin". I think it was soon after I started collecting in the mid-90s when I got a catalog from that shop. They had Colecovison games at horrendous prices. Do you know more about that shop? Maybe he bought the remains of a Coleco warehouse in the USA and added his own German instructions?
Das taugt mir!
Aber mit wenig Ei bitte …