im stuck in the room where only 1 block wants to move
Without knowing which room you're stuck in, i don't know how to help, but i'll try.
The Hammer, you need to go west from the Entrance, don't forget that key, you need it, and north.
There are stairs there that will take you to a room north. Follow that hallway all
the way to the end. When you can't go further east, go 2 rooms south and look for another tunnel.
You have to kill all the bad guys and push blocks to find it. That will take you to the Hammer.