Tentacle
Get a flier from the rack and a help-wanted sign from window. Pick up dime and go into Dr. Fred's office. Once in office, pick up Swiss bankbook. Notice there's a Booboo-B-Gone inside drawer. Take it. Open the portrait and leave.
Now open the grandfather clock. Bernard goes to the secret lab. They'll meet Dr. Fred and he says about Bernard. The Chron-O-John will be begin and it's fall. It can be trouble. After he talks, go upstairs again.
Getting a Crowbar
You can't follow him, but come back later. Go upstairs, and close the door. Pick up keys and leave the room. Go outside, through the parking lot. Here, give the keys to man in ski mask. He'll gives you a crowbar. Go inside.
At the foyer, use it with gum in dime stuck in it. He's automatically taken. Chew it. After you have two dimes, go back upstairs again. Use a crowbar again with candy machine. There are some quarters, so take it.
Freezing Hamster
Go into Dwayne's room, and pick up disappearing ink. Go upstairs to 3rd floor, and he said where'd he go. Go into Weird Ed's room. Here you meet with him. Choose all of option. When you talk, use the disappearing ink with a stamp album. He'll angry when you ruining his pony express stamps, and he winds it. Pick up stamp album and a stamp before you go back into Weird Ed's room. Give the stamp album to Weird Ed, which just now thrown. Leave the room.