Nice mini game! I enjoy the arcade feel of it.
If I could suggest a change of Sprite when the player character has a full glass ready to throw at the bears? That way the player has a visual cue when they are in a 'can throw' state.
An SFX when you pick up the glass would also help to emphasize the button press.
Also, I felt that the bears could be sped up as the first several rounds were quite slow paced.
Having said that, it's a great mini game that shows lots of promise. Well done!