Accidently lost in temple of time?

So you were in the Temple of Time and now you can't seem to activate a statue? To activate the statue, you must use an item that you get in the dungeon called a Dominion Rod. But from the looks of things, you already obtained it after beating the mini-boss. Simply take it out and point your cursor at the screen. While holding B, aim the cross-hairs (the yellow symbol appearing whenever you put your cursor on the screen) at the statue. When you do it correctly, the yellow symbol changes shape, indicating that the statue can be activated. Now let go of B to shoot a beam of light to activate the statue.

Now about the boss key. It's in a room that can be accessed through a door in that room with the weighting scales, which are those things that change altitude when you step on them. If you still don't get what I'm saying it's the second last room before the mini-boss room. First, try to get as much of those black jars that can be activated with the Dominion Rod. Then, put them on the left scale, not the right. When you put enough of those black jars, the right one will lift so high that you will reach a new platform. Make sure you are on the right scale before moving the jars to the left!

From here, just take out your Claw-Shot and aim at one of those targets far away from you. Then, take out your Spinner and use it to ride the gear-rails in the walls to get to a high ledge. Now all you need to do is enter the room. In here, there is the boss chest locked up behind a gate. If you go on the ledge above, you'll notice that there are four switches but only three of those black jars. Easy, those enemies down there have a metal shell that is heavy enough to activate the last switch. Simply aim and steal the shell with the Claw-Shot from those baddies and put it on the last switch. The gate will open and the boss key in the chest will be yours. I hope this helps!