Very interresting game :-) I can see lots of potential. I think the robot is cool.
Here are my remarks :
* you should put numbers on level, so it's easier to give you our feedback on specific level
* For the control, in the begining, I had my right hand on the arrows and my left hand on the "F" and "E" keys, so I didn't understand how to aim (because I didn't use the mouse). In the tutorial, you should say "aim with the mouse".
* A option could be move the robot with A, D and aim with the arrows ?
* I changed the jump to W because I find it easier. And maybe down arrow or S to cancel a throw
* I tried to replay a level, and as there is no more key, there is no more way to exit the level. Maybe put a "ghost" key ? Or put an exit door or a teleporter in the same place as the key ? In fact, I think a teleporter should be great at the end of each level because now, we don't know how we did to get back to the hub ;-)
* In Level 5 there is a magnet attached to a block with a chain. I found the chain very bouncy and not in a realistic way. It a good thing the the blocks and the magnet bounce a little, but they should do it accordinly to each other. For the moment, it's more like they are attached with soft rubber instead of a chain.
* For me, there should be no red or blue smoke when we throw the magnet. The smoke for the wheel of the robot makes sense, we lift up some dust while rolling, but where the smoke from the magnet come from ?
* In the last level, I have found the solultion, put every thing in it's place, the path to the key is open, but I fall in the whole under the magnet and I cannot jump to the left plateform. I had to get the magnet back to reset everything. While letting me jump to that plateform wouldn't have change anything to the puzzle or the difficulty of the level. I was juste annoyingly stuck down there.
