All 11 Unique Phases - Mario Bros Arcade Atari 2600 Port 1983
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In the original Japanese arcade version, there are 99 phases, with a total of 22 unique stages that cycle, and of course doing the math means that the bonus stages do a repeat cycle more often then the traditional phase stages having fewer unique bonus stages.
In the non-Japanese arcade there are 21 unique stages (Arcade), and 11 unique phases (NES and I think the Atari ported versions replicate the 11 unique phases, except for the Atari 5200 version which doesn't list phases at all, but still cycles them).
In the NES console ported version, there are only 11 unique stages before it repeats and cycles. I could not find anything on the Atari ported versions about unique phases, but it is either identical to the NES ported version of 11 unique phases. I'm not sure on this one, as I can't find any info, so I am assuming the Atari ported versions feature 11 unique stages like the NES version, and if not and feature less, they are covered in the first 11 phases.
The console ported versions of both Japanese and non-Japanese are the same, unlike the Arcade Japanese and non-Japanese (International), in amount of phases (99/98) and unique phases (22/21).
This video shows all 11 unique stages of non-Japanese Mario Bros games before they cycle over again.
Please note this is not my best playthrough to date, and have decided to only record unique levels and stages with arcade style games that cycle through on this channel. All my longer videos are sped up by x2, and the extremely long ones by x4. This is done to create shorter videos to retain more minutes watched for the analytics and success of this YouTube Channel.
This was played with an original Atari 2600 joystick and USB adapter.
Post Note and Citations:
I had much trouble finding information on this game. Everyone seems to be SEOing and meta-tagging "Super Mario Bros" in place of "Mario Bros" and "Original Super Mario Bros" in place of "Original Mario Bros". So all the information when searching for this game kept coming up as Super Mario Bros. Data specifying extra lives online about this game are incorrect, at least for the NES ported version. It would seem that the NES ported version removes the ability to obtain extra lives in both the Japanese and English ports past 20,000 and 30,000 except for the first life, making the NES port impossible to cycle through all unique levels until phase 98/99. You only get 1 extra life in the NES ported version at 20,000 points, and that's it, you don't get anymore in the NES port, and online sources are incorrect in stating that the NES port is an identical port of the arcade version, crediting extra lives every 20,000 (non-Jap) and every 30,000 (Jap).
Information on the unique stages (phases) of 21 (Non-Jap), and 22 (Jap) is here, as well as the NES ported version having 11 Unique Stages, and without a statement, an implication the Atari versions (being made after the NES version) may be denticle, save the mechanics. https://ahistoryofthemushroomkingdom.fandom.com/wiki/Mario_Bros._(game)#:~:text=The%20game%20features%2022%20unique,%22%20(99%20in%20Japan).
As far as this version goes on the Atari 2600, I have noticed that enemies are randomized compared to the NES version, in that the enemies come out of pipes at random as well as when coming back out after going in, unlike the NES version. The fireball also goes across screen straight across, and features only 1 fireball. The crabs don't remain hit once after popping back out of the pipe like the NES version either. There are also several other notable differences, such as the jumps over spaces and ontop of the block. The game mechanics are all different in short, but I have no reason to suspect the unique stages are less than 11 (such as in the NES version. I believe all the console ported versions phase layout were the same). One big difference I did notice, is that unlike in the NES port, you are able to get more than 1 extra life, and keeps in sync with the Arcade version of gaining extra lives every 20,000 points, which the NES version you get a total of 4 lives for the entire gameplay and can't recuperate lives with points earned.
It has been a pleasure playing this version with an original Atari 2600 joystick through USB adapter, and the video has been sped up x2 to shorten the footage to retain more minutes watched to help the channel's analytics and longterm goal of monetization.
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