Disney's Meet The Robinsons (DS)
This game is titled Disney's Meet The Robinsons in North America, Europe, and Australia and Lewis to Mirai Dorobou: Wilber no Kiken na Jikan Ryokou in Japan.
Level 2: Opening the door
When you are near a door that will not open in the second level, there are usually a couple of ants you must beat up. Once that is done you can open the door.