Really nice game!
I loved to play Lemmings as a child ;-)
And i really like the graphics.
Nice work!

But i found a little bug... the mouseover tooltip wich tells you "click to release assembot" won't move when scrolling. so it stays on the same spot like the tooltips from hud. Maybe just put a little boolean in the constructor of the tooltip telling it if scrollable or not ;-)

Looks nice... Movement is good... but the score room made my browser crash^^

Great!
What about adding a scoreboard? ;-)

I really like this one!
The Intro is really nice and makes the loop very cool!