I found two bugs:
1-Sometimes when you jump and toss the sword, it doesn't come back to you properly
2-Sometimes the character dies but you're still able to throw the sword (though you can't walk)
Also, there are some things that I didn't like very much, but could be repaired:
-The engine for walking over the ice isn't very smooth. I think it would be better to use friction.
-The Slash Attack is almost useless when you can throw your sword. This attack should have an advantage, for instance, dealing more damage to the foe or being able to hit a foe that is above or below you (for instance, in a inclined floor). Also, the range of this attack is too short; I always get hit whenever I use it near an enemy.
Ah, and BTW I'm currently at the 3rd boss.