I have it on cartridge. It's both boring and extremely confusing. Like a number of Atari games. It's pretty bad.
Well. Atari got it right with Adventure! and Missile Command. Iused to love playing Missile Command for a few hours, as it was fairly faithful to the arcade version despite the graphics. Atari had it right a few times, anyway
Oh yeah, I like quite a few Atari games. Combat is a classic. Yar's Revenge is fun. Berserk. That dragon running game, the name escapes me. There's a bunch of solid arcade ports. Pitfall. A lot of the games are very entertaining to watch and great for parties. Try playing them in the dark with people who've been drinking.
It might be worth noting the Atari 2600 had the longest lifespan of ANY console. It had major releases into 1992 (in other words, it outlived BOTH of its successor consoles, the 5200 and the 7800, and somehow lived into the SNES/Genesis era), which a lot of people don't realize. Some of the latter games are also technically incredible considering the extreme limitations of the system.
I still have my 2600 and 7800.
But there's a reason the market crash. There's such a crapton of awful releases, and the bad games are soooo hard to even understand in many cases (admittedly, the Intellivision and Colecovision's bad titles have the same problems). Say what you will about Nintendo's monopolistic hold on the NES, but their licensing restrictions really helped. The NES itself has plenty of stinkers, but almost all of them are at least playable.