It evolves with max friendship. (Which doesn't really explain how Cyrus got a hold on one. >_>)
Golbat evolves into Crobat but it's not a level requirement, it evolves by happiness but in order to do so you must have the National Dex.
It is suppose to evolve at the Level of 20,but if you want it to evolve later it can evolve anything after it is at Level 20.
It will evolve by level. Teddiursa will evolve into a Ursaring at level 30.
They evolve at level 36
It will evolve at level 36.
They evolve on level 40
it evolve on level on 64
To evolve a Sandshrew level it up to Level 22 and it will evolve into Sandslash.
Pikachu do not evolve by level. They evolve when a thunderstone is used on them.
Kricketune does not evolve, but a Kricketot will evolve into Kricketune at level 13.
if you dont let it evolve at the required level of level 20. itll try to evolve at every level following.
Level 40.It will evolve at level 40.