5 stars: Fantastic Emulator App. It is a clean interface, has no nonsense in it, is completely free with absolutely no advertising. This will run full screen with Bluetooth controller support (or USB) and works very well. I tried Asterix and Oblix from Sega Master System 1 and it was so much like the original that you could not tell, apart from better controls and the ability to save your game ETC! Give it a try. I fully recommend it.
4 stars: I really like this app and I can have fun playing Sonic 1 and Triple Trouble on it despite the somewhat awkward controls and lack of functions, but I will still give it 4 stars since it doesn't have any ads nor you have to pay for it, so I get the creator just does it for fun, not much I can say apart from that, it just works well and a SMS/GG emulator for mobile is welcome to me, since both consoles are not very well known
4 stars: It works perfectly well but it would be much better if you could customise the gamepad. If this exists, I couldn't find it anywhere, and it makes using a dualshock controller quite inconvenient.
3 stars: Works fine enough with Master System games, just wish it would work with SG-1000 games, all I got was a black screen with the audio playing
3 stars: It's okay, it's not lag, the only problem is the control, you can't customize it, then the menu is also ugly
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