Tip for Level 7 (submarine)
OK, you made it this far, and you might be stuck on something. While you think about that, try doing something else. Do a bonus thing. In this case, it's the pebble game. You know, where you have to match the red, blue, and green pebbles to their bowl thingies. Here's the tip. After you run away from Bruce twice, There are a couple broiler rooms. (After you run away from him once, there is only one broiler room.) There is the first room, there are NO pebbles in that room. The second room is different. Right when you enter that room go low towards the ground. You should see the red bowl. Ignore that for now, but remember that now. Explore a little bit more, and you will find the green pebble. Carry it until you find the green bowl. (There should be the red and blue pebbles there also.) Drop the green pebble in the bowl, the pick up the red one.
Now go back to the beginning of the room, and remember that red bowl? Well, find that, and drop the red pebble in. Go back to the green bowl, and pick up the blue pebble. The blue bowl isn't until the next broiler room. The blue bowl is at the top of the ceiling, in the next broiler room. Explore to find it. Well, that's it! You should get a starfish for your hard work.

Submarine cheat
To get past the chain at the end of the submarine level... you need to smack the green arrow button REALLY HARD. It took me ages to figure that one out