Castform does not evolve it gains a different look for different weather conditions. Ie. rain, ice, and sun.
Level 36.
Bellsprout evolves into a Weepinbell at level 21 in Pokemon Crystal.
Caterpie evolves into Metapod at level 7, and then into Butterfree at level 10
It evolves at Lvl. 25
Assuming Liquid Crystal is a fake Pokemon game, I don't know, but in the regular game it evolves by means of trade.
he doesnot evolve
Castform cannot evolve, but it changes forms depending on the weather condition.
In pokemon crystal Pigeotto evolve in 36lvl
Mareep will evolve at Level 15 in Pokémon Crystal.
Slowpoke will evolve at Level 37.
level 30
The Level When You Get A Life.
Level 30.
30
41
Level 36.
You need to level Zubat up to level 22. Then it will evolve into Golbat.