Miner 2049er
In a German Miner 2049er I found a piece of paper from Telespiele Shop Berlin with a cheat code. They got the cheat from Stefan Kilz from Hannover. With the cheat you can jump to any screen you want. Insert the Miner 2049er cart into your Colecovision console and power it up. Press the Reset button. On controller #1 press the following keys: #6453# followed by keys 1 – 9 for screen 1 – 9, or key * for screen 10, or key # for screen 11. I have not tested this cheat so far, so I can not guarantee that it works.