I was surprised by how easy it was. It claimed to be hard, yet I played through it easily (the combo was the only thing that really stumped me, but only because I kept missing a number), and I'm not terribly good at these sort of games.
Great cliffhanger, can't wait for the next one.
I can (and have already) spend hours playing My Pet Protector. It's absolutely amazing! A bit difficult directly after character creation, but quickly gets to a better difficulty level. I'd love to see this game get some badges. Five out of five, I really hope you release more, undefined.
Perhaps you should give the tutorial some Beginner-equivalent name, intermediate to the beginner, difficult to the intermediate, and insane expert to difficult?
 "Alice is Dead - Ep 1"){kind=icon}
 "Frontier"){kind=icon}
 "1924"){kind=icon}
 "Civiballs 2"){kind=icon}
 "Little Wheel"){kind=icon}
 "Another Small Favor"){kind=icon}
 "My Pet Protector"){kind=icon}
 "Warfare 1944"){kind=icon}
 "Castle Quest"){kind=icon}
 "Raider: Episode 2"){kind=icon}
 "27 : First Chapter"){kind=icon}
 "Run"){kind=icon}
 "Antbuster"){kind=icon}
 "Turn Based Battle!"){kind=icon}
 "Pyro II"){kind=icon}
 "This is the Only Level"){kind=icon}