a bit torn
it's cute, but want't too much fun. When jumping, the ratio of horizontal to vertical velocity seems weird. Transforming into a snail didn't add to the gameplay, crawling through tight spaces isn't much of a special ability.
I felt that the game didn't give me much choices. I had to use the snail in tight spaces, but wasn't allowed to use it anywhere else (mana restrictions, snail being useless). I couldn't choose between fighting or evading enemies, I had to evade them. Even though it looked like a free-exploration game, the level design forced me to either take the intended path, or backtrack to the intended path later (which is just tedious if the intended path isn't obvious).
Then there were the bugs. Damage boosts could transport me right through walls, possibly to places where you get stuck. Keys are generally useless since you can easily pass doors without them (with a trick borrowed from super mario bros.). Both wouldn't be a problem if I hadn't run into them unintentionally, forcing me to restart the last level twice.
Hence only 6 points.