This game is an abusive relationship.
Oh sure, there are fun times, lots of them. Sweaty, exciting, fun times a-plenty. However, this game will try to break you. It will keep pushing you closer and closer to the edge. At first, it's fun, and teasing, you chuckle and shake your head at how silly this game is for pretending like it wants to kill you. Then the bruises start to form. You'll have to lie to your friends and family, tell them that the controller broke because you walked into a door while carrying it. You were only crying because of allergies, not due to frustration. You lie to protect your relationship with this game, because they don't understand just how good it makes you feel on those good days, when you manage to endure the barbs and spikes and blood vomitted up by ghosts and goblins. They'll never understand until they play it themselves.
Blood of the Werewolf is a loving return to the day of unforgiving platformers, where death was more commonplace than life, and each room completed brought joy at your success followed by the sudden realization that it only gets harder from there on. In a game like this it's important that you are allowed to get right back onto the horse, and thankfully BotW does that well, immediately throwing you back to the latest checkpoint (typically at the start of a room) so you can dust yourself off and try again.
The game tells the story of Selena, one of the few remaining werewolves in the world, who is on a quest to retrieve her stolen child. On the way, she must do battle with classic monsters, including Dracula and the Mummy. Between each boss are a few levels of various locations, ranging from the sewers, to the city, to the woods and graveyard, each one testing just how willing you are to endure and see the game through to the end.
Along the way, you'll either do single-jumps and fire your crossbow as Selena in her human form whenever you're inside or the moon is eclipsed somehow. Once you step outside, under the light of the full moon, Selena turns into a werewolf, limiting the range of her attacks but allowing her to double jump and manuever in-air briefly to better secure those light landings. The game always feels much easier as the werewolf just for the fact that jumping is easier - and even though your range is limited to close-quarters, the wolf is so strong that most enemies will die in one hit if you time your attacks well. Upgrades are hidden throughout the game, each one requiring that you explore the level for secrets in order to find them. You could easily make it to the end of the game without gathering any upgrades save for the two you are given during the tutorial. This can make some boss fights harder than they need to be, so feel free to revisit a level and sniff out some secret rooms if a boss is giving you too much trouble (every boss can be defeated without upgrades, however, but they do make them easier to fell if you have them).
Graphically the game is very pleasing to the eye, with a wonderful job on the art style to be accented by the effects. You never forget just what the overall location is (i.e. city, graveyard, docks, etc.) just by the aesthetics all around you. Rooms don't feel like they repeat themselves in background or layout (except in the few occurances where they do, but only to gradually step up the difficulty of a continuing puzzle).
The game is hard, pure and simple. You start off slow, and you probably wont die more than a handful of times on the first few levels and the first boss, so long as you're not completely new to the platforming scene. After awhile, however, things start to really turn against you, demanding percision jumping and quick reflexes. What keeps this game from feeling unfair is that each challenge never seems impossible. Every time you die, you can immediately see what you did wrong, and it's clear what you need to do right in order to pass - it's just executing this new plan is easier said than done. Still, the hurdles presented never feel so daunting that you give up on the game entirely. You might put the controller down and play something a little more relaxing, or just go outside and scream, but you'll come back again and again because the game just works so well. When a game requires as much percision and timing as this game does (especially on the last 2-3 locations), the mechanics of movement are vital. Everything else can work perfectly, but if the movement controls don't work just right then the whole thing falls apart. Thankfully, BotW's jump mechanics are fluid and tight, and you never feel like the game was being unresponsive to your input and that's why you fell to your horrible death.
In short, BotW is a brutal game that never lets on that it's impossible. Every failure is just another stepping stone on the road to success. The controls are percise, tight, and reponsive. The visuals look crisp and clean and pleasent to look at. If you're a fan of old school action-platformers like Ghost 'n' Goblins, this is a must have for you.