It has potentials :)
Sounds -
simple and effective.
Music
- becomes repetitive - having 2-3 tracks on loop would help
Graphics
- Liked the simplicity of it - Though black terrain could look a little more slick.
Gameplay
- if you run around most of the time it is ok fun, but it never really get harder or more difficult. And since you have the protective areas up all the time it felt too easy, I upgraded the spell 5 times. Then went ahead and camped outside one of the field as easily racked up 100+ hearts.
-Added randomness to the protective field would help (not in a fixed location)
-Spell spreading
- felt like it did not spread fast enough
Monsters -
they seem kind dumb, but they do their part in the game - would be good if they got more challenging as the game goes on.
Bob
- is a nice guy.
End game
- I fed the dark spell 101 hearts - that broke the game :D also having to click it 100 times kinda sucked, maybe just make it HOLD down right button and it feed 1 hearts x seconds.
Minimap
- cool that it is there, but need to have a tiny blob there shows where you are on the minimap.
Final notes:
-If you keep working on it, i believe you could have a fun game people would play over and over.