This happens to be my favorite colecovision game right now basically you fly a plane through an obstacle course and its really difficult to control the plane and shoot all the weird (bouncing balls? Plus sign thingies) that threaten to crash into your plane. Here is a hint. When you get to the last chamber, there's three balls bouncing from openings into the chamber, and one ball inside the chamber bouncing around. Take out the ball on the western side of the chamber, so you have a straight shot to the goal (marked "end"). Then keep shooting and hope you take out the ball inside the chamber before it crashes into you. My score on this game tonight is 52890 (difficulty level 1).

Oh and you can dodge the killer drops of (green water? what is that?) by pulling up and flying straight up for a little bit.

https://archive.org/stream/Looping_1983_Coleco_M6#page/n1/mode/2up

High score (not mine):

http://highscore.com/scores/Colecovision/Looping/11404

Game manual

http://www.theadamresource.com/manuals/Cartridges/Looping.pdf