it matters on their happiness, when they are happy enough you level them up and they evolve its also good to use a friend ball when catching it
bagon will just evolve into shelgon
psyduck evolves into golduck at level 33
Wingull evolves at level 25 into pelipper
sadly......no it's level will be to high to get it higher
In Pokemon? I'm pretty sure it doesn't evolve at a certain level. It evolves by trading.
Mareep will evolve at Level 15 in Pokémon Crystal.
Chansey evolves by Happiness, not by level. Can evolve at any level, depends on how much he/she likes you. Chansey starts with a Happiness of 140, you have to get this value over 220 for he or she to evolve. To do this, you can have him/her hold the Soothe Bell, walk with him/her in your party allot, have him/her massaged, use lots of items on him/her or level him/her up allot for further information see: http://bulbapedia.bulbagarden.net/wiki/Happiness
Make it have high happiness and then it'll evolve.
In pokemon crystal Pigeotto evolve in 36lvl
Slowpoke will evolve at Level 37.
Drowzee evolve into Hypno at level 26.
Just give Chansey protein, zinc, calcium, hp up, carbos and level it one...
Route 14, however, it is rare.
Level 25
level 26
bedew and chingling and hppiny and chansy
hapinny into chansy