Yes, you can change the display brightness in this phone.
Yes, Nokia 3310 comes with 2.4 Inch QVGA display with 2.5D kind of glass display. You will have no problem using direct under sunlight.
No. Nokia 3310 do not have any map aaplication.
Yes, Nokia 3310 does come with removable battery.
Snake game is free and comes preloaded.
There are a few things that do bring back the feeling of owning an original Nokia 3310, such as the classic Nokia ringtone, the physical buttons, the tiny body, and solid build quality.
You can buy other feature phones for less than this, and the new Nokia 3310 doesn't justify the extra outlay over the simple nostalgia card it's playing.