Pretty cool, except the utility of upgrading weapons seems sort of pointless. Also, would be more handy if when holding space I didn't have to click my next weapon choice but just had them attached to hot-keys 1 thru 0.
I like the graphics, and the levels are pretty interactive. it can be confusing when trying to figure out which enemy will see you and which won't when throwing stones or whatnot.
Overall, a pleasant experience.
out of 10...
gfx - 8
sfx - N/A
gameplay - 8
design - 8.5