No. You have to go back and challenge him again in order to get a chance to recruit him. You might even have to do it a few times before he finally decides to join you.
he defeated undertaker in tlc once in 2000
You can't; Munchlax appears only once in Mystery Dungeon Red Rescue Team.
Iowa
The Battle of Waterloo.
Once you have defeated Gordor and have captured Kyogre and Groudon, you will find Raquaza at the place that you defeated Gordor.
Iowa
you can't
Once
he got the mangekyou once he defeated itachi.
Rescue Me, by Kerrie Roberts
it will take at least an hour to get to the rank u want but select a lot of rescue missions at once and do the missions at the same place
I don't think you can.