Poccha, you should use the Onyx Hook to take Loid to Magicant. Then talk to the swimming cat.
After you train him, ya gotta go to Duncan's factory to get the rocket and use it to blow up rocks.
And I like that Ninten (or Ninty, as he's called in the remake XD) has no offensive PSI. Makes it seem more PSI-ish if all Ninten has is normal PSI stuff (Thaumaturgy, telepathy, teleportation, et cetera). With the other two games, it's almost as if PSI was replaced with magic, the one thing Nintendo deliberately tried to avoid with MOTHER.