1978 arcade title Avalanche is a game I’d not heard of prior to encountering it on Atari Flashback Classics for Nintendo Switch, and it’s entirely possible you might not have come across it either.
The reason for this is that its official home port (developed by the creator of the arcade game, Dennis Koble) only came to Atari 8-bit computers rather than the popular 2600, and even then only through Atari’s “Atari Program Exchange” system, whereby community-developed games and software would be published by Atari.
Meanwhile, Activision, seeing a good concept that wasn’t being leveraged as much as it could be for the home market, decided to release Kaboom! for the Atari 2600 in 1981, and as a result, the idea of paddle-controlled platforms catching falling things at an increasingly unreasonable tempo tends to be credited to them rather than Atari.
You now know the truth! Shout it from the rooftops!