Prototype ROM
Unreleased
V1 found on a ROM site.
V2 released by the Atari Historical Society.

While the Atari 2600 has some truly crappy arcade ports, Sinistar is amazingly good, especially considering that it is unfinished. Now, there are two versions of this ROM that are available - one that has been on the internet for years that is pretty early along in the development, and then a recently released, more complete version of the game which is far more playable.

I was quite surprised the first time I ran the V2 ROM - this game really is quite close to the arcade version! Now, the graphics are not quite the same, but they are all recognizable. The control is pretty tight and the difficulty seems pretty fair. (Except for when Sinistar starts flying around - more on that later tho) The only limitation of the 2600 that makes a significant difference in gameplay is the fact that the 2600 only has one fire button. However, the programmers have adjusted for this by making your ship constantly fire, and the fire button cuts loose a Sinibomb.

Please note that both of these screenshots are from the V2 ROM - the V1 ROM does not have the graphic flicker implimented yet and this game relies heavily on this. For all three of you out there who have not played Sinistar, the game is pretty simple. You need to shoot the asteroids to collect crystals, which are needed to make Sinibombs. One crystal will give you one Sinibomb. The enemy will also be after you to stop the collection of crystals while they assemble the Sinistar. Unlike the arcade version of the game, the drone enemies will not collect floating crystals, but rather assemble Sinistar in more of a timed fashion. Sinibombs are the only thing that can hit Sinistar, and you can either use them to slow construction, or to destroy him when construction is complete and he comes after you.
Download the Version 1 ROM


Download the Version 2 ROM
At this time, I have been unable to destroy the Sinistar in either version of this ROM. I do not think this part of the code is complete, because the Sinistar swoops around with insane accuracy, destroying your ship in mere seconds every time. I've managed to fire off a full compliment of 20 Sinibombs with him near without even scratching him. If you manage to destroy him, be sure to let me know.

The V1 ROM, as I've stated before, is significantly earlier in production than the V2 ROM. V1 does not have the graphic flicker, making half of the items on the screen invisible at any given time. Also, V1 does not have a title screen like V2 does - V1 begins the moment the game is turned "on" in the emu. Difficulty seems to have been tweaked as well - V2 has far fewer of the Gunner ships, where in V1, you're swarmed by them constantly.

Honestly, V1 isn't really worth the download unless you like seeing how the game developed from the early version. V2 however is quite fun, and I wholeheartedly recommend it as one of the better Atari 2600 arcade ports - even tho it was never released!

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