1. I think you could improve the game by eliminating the prep box and letting players directly drag the object into the field for the puzzle. Having to click the icon then click and drag made the game a lot more tedious.
2. It wasn't clear that the character's action would switch from level to level. I'm not sure why he is suddenly jumping in the second level. I think just some visual cue when the level starts would help with that.
3. the game wouldn't let me place an object when I paused the guys movement. Not sure what the point in having the pause is if you cant do anything during it