level it up while having a remoraid in your party/team
Mantyke doesn't evolve at any particular level. Whenever you want it to evolve, make sure you have a Remoraid in your party, then level up the Mantyke. It should evolve into Mantine.
everstone
You have to trade to another game to make it evolve.
Give it happiness
no it cant
No, you must trade the certain Pokemon that need to be traded to evolve to make them evolve.
Go to Sunyshore City or Route 223 and surf (Having a 10% chance of finding it at both area's) at levels 30-45 at Sunyshore and at levels 30-40 at Route 223. Hope it helps!! Info also came from =http://pokemon.marriland.com/platinum/pokedex/
you have to make him happy. hope this helped!
you have to give it something and then level it up and it will evolve in Pokemon pearl
You'll need to make it have high happiness/friendship during the day to make it evolve into Roselia.
Pachirisu CANNOT evolve at this time. Maybe soon the developers will make a Pachirisu evolution.
Well you either give it a stone or evolve it in pokemon pearl in the ice place or the eterna forest!