First off I want to thank all the hard work everybody has been doing with Vita Homebrews and Emulators, being able to play classic Sonic games on the go is amazing.
Now about Sonic the Hedgehog 2, there's a little thing that bugs me about Green Hill Zone, that line at the bottom of the screen of misaligned pixels. I find it distracting and annoying, so I did a little tinkering in the video settings and thought I would share with everyone. I'm sure there are people who can probably figure this out on their own, but for all the people who are new to retroarch (including myself) this could be helpful if your uncomfortable messing around with different settings.
What you do is bring up the quick menu within the game and back out to the main menu, then go to settings and video. In the video settings I set aspect ratio index to "custom" and change my custom viewport width to "960" or "640" (if you want the ratio 4:3) and custom viewport height to "550". This will just barely hide that line at the bottom without ruining the HUD and it looks great. Now if you have the viewport width set to "640" you might have to adjust the custom viewport X to center up the screen. Also turn on Integer Scale when adjusting the width and height which will move it up quicker to 960 x 448 and then turn off Integer Scale to manually bring 448 up to 550. I've got some pictures of the settings and results to show you.
https://imgur.com/a/MIXOS
https://imgur.com/rEuUGR1
https://imgur.com/XvBAmx1
One more thing when you beat Green Hill Zone you can set the height to 543 for the rest of the game to give you the whole image, only the first Zone has that line at the bottom, enjoy!
Now about Sonic the Hedgehog 2, there's a little thing that bugs me about Green Hill Zone, that line at the bottom of the screen of misaligned pixels. I find it distracting and annoying, so I did a little tinkering in the video settings and thought I would share with everyone. I'm sure there are people who can probably figure this out on their own, but for all the people who are new to retroarch (including myself) this could be helpful if your uncomfortable messing around with different settings.
What you do is bring up the quick menu within the game and back out to the main menu, then go to settings and video. In the video settings I set aspect ratio index to "custom" and change my custom viewport width to "960" or "640" (if you want the ratio 4:3) and custom viewport height to "550". This will just barely hide that line at the bottom without ruining the HUD and it looks great. Now if you have the viewport width set to "640" you might have to adjust the custom viewport X to center up the screen. Also turn on Integer Scale when adjusting the width and height which will move it up quicker to 960 x 448 and then turn off Integer Scale to manually bring 448 up to 550. I've got some pictures of the settings and results to show you.
https://imgur.com/a/MIXOS
https://imgur.com/rEuUGR1
https://imgur.com/XvBAmx1
One more thing when you beat Green Hill Zone you can set the height to 543 for the rest of the game to give you the whole image, only the first Zone has that line at the bottom, enjoy!