Yes, you can.
Yes you can but first you need to get national dex!
The first trainer on the way to the Pokemon league has a luminion.
Emerald just needs to be inserted in the gba slot of your ds, you need to complete diamond first though.
no
Gligar is a Ground and Flying type Pokemon first introduced in the second generation. In the Diamond and Pearl games, it can be found on Stark Mountain and on Routes 206, 207, 214, 215 and 227.
No. Gligar's evolution Gliscor makes It's first appearance in Generation IV
first: its called Gligar not Glyger and second: you can catch it on stark mountain, route 206, 207, 214, 215 and 227 if you have an emerald inserted. same on diamond
you must use a cheat
First, you need to either catch a Gligar (at Routes 207 and 214) or get it by trade. Then have it hold a Razor Fang and level it up between 8 pm and 4 am. Rare candies will not work for leveling up, and a Razor Fang can be found in the Battle Park or bought at the Battle Park
To evolve Gligar you first need the Razor Fang item. Give the Razor Fang to Gligar and level it up during nighttime and it should evolve into Gliscor.
You would get the quotient first and count the digits.
You get a Razor Fang at Battle Tower then give it to Gligar and level it up between 8:00 pm and 4:00 am or go to Veilstone City then go downwards until you see a cave, stop there, then go down to first, then the second patch of grass (where the man is standing) and where there is no grass that's where the Razor Fang is. Note: It's hidden, so stand 1 step before it.