Oooh, I enjoyed it very much. ^^
Love the limited color pallete; great choice! Also the full arts of the characters look so good. Being able to pick your own loadout and choose to play aggressive and deadly vs. sneaky and silent was a great game design choice too. ^^ Tho I felt like playing sneaky was too easy while playing aggressive was too hard with no healing items (afaik). Good idea to implement multiple endings for replayability too. :>
All in all, very good job! ^^