Wait, this isn't the full game? It appears as though it only gives you the first three rooms. Brilliant game easily deserving of 5/5, but I can only give it a 3/5, since I'm only playing 3/5 of the game...
What really makes this game interesting is how the weapons affect both the enemies, objects, and environment. That really opens up a lot of possibilities.
I don't mind that you need to use kreds to get ahead, but only because it seems that everything can be gotten with grinding instead of kreds.
Also, why is there an energy bar? Games that have slow-replenishing energy bars are usually there to slow down leveling in multiplayer-oriented games. While there is a multiplayer aspect to this game, it hardly calls for the energy bar.
Other than that, simply fantastic game.
Refresh!