I gave it 3 stars but I really like it, it just lacks some polish. For example I don't like having to click a prop in the bar then grab in in the level - should be able to drag it directly.
Got a bug in lvl 4 where the spring disappeared, hitting try again brought it back.
Need to ramp up the difficulty faster IMO, because at the moment an otherwise fantastic game becomes repetitive and laggy faster than it gets really challenging.
Argh. Three times now I've been doing well in The 100, paused, hit resume then tried to click something in the map before the menu's finished fading out and quit to the main menu.