>>46389541Yes, Regis can be caught throughout the game after reaching Snowpoint for the first time and activating an event. This lets you catch the Regis at Level 40. However, Regigigas itself is post-game and is Level 100.
Regice & Registeel - Unchanged from Platinum
Regirock - Oreburgh Gate (New lowest floor)
Regieleki - Valley Windworks (New area down the river, needs Rock Climb)
Regidrago - Route 210 (New area past the Draco Meteor tutor, needs Rock Climb)
Each Regi gets a Mega Evolution, the five lesser stones are found in their chambers in the post-game after a Giratina episode and Regigigas is found with its one.
Source:
My fat fucking ass 
