took me a hot minute to figure out you have to click to build a platform then click again to build a weapon.
some notes:
the skulls attack you, but you can't attack them directly. it would make more sense to either a. give the player a direct weapon as a means of defense or b. only have the skulls attack the mining rig, so the lack of self-defense doesn't matter.
you can also only build behind you, which is fine in theory but as it is the skulls catch up so fast and the rig digs so quickly that everything you build ends up not mattering at all about three seconds after you build it. I think making the rig dig slowly and then gradually pick up speed would fix that handily.
on a technical note I can't get the mouse cursor to re-lock into the game window if I hit escape and then click back on the game. even in full-screen it still shows me the mouse and doesn't keep me centered anymore.
everything else I can think of is stuff you've probably got planned for later anyway (like the ability to choose what weapon you're going to build, etc)
