
Crisol's main gimmick – weapons use your blood for ammunition, meaning that you lose HP each time you reload – is interesting and well implemented. Unfortunately, pretty much everything else – combat, story, characters, puzzles – is not. There are some solid ideas here, but they've been used to build a throne of mediocrity for the game to slouch on.
The blood for ammo thing ties directly into the plot. You play as Gabriel, a soldier for the cult of the sun (yay!). He's been sent to infiltrate the welcomingly-named island of Tormentosa, ruled by the cult of the sea (boo!). However, his first encounter with an enemy doesn't go very well, so his god resurrects him with the power of god-flavored blood. This makes Gabriel's gun stronger but, more importantly, it also makes it look cooler.