How much happiness does a pokemon need to learn an 'ultimate move'?

Question

Those moves that requre happiness that Move Tutors will teach.

Answer 1

250 happines thats the max happines
heres a something thay will help you :
http://www.serebii.net/games/happiness.shtml

and to increase happines walk 252 steps with the pokemon
give it a sooth bell
and battle with it
try keeping it from fainting and thats it :)

hope this helpd you

Answer 2

Yes Charizard4ever is right but it also helps to feed it poffins and if you are in sinnoh give it a massage and a spa treatment