I'm spanish and speak a little English. I chose Spanish and after the intro I had to restart the game and play in English 'cos the Spanish translation is... well... I wonder if that's really Spanish or English mixed with Spanish words.
The horizontal view movement is way too sensitive compared to vertical. Still, very fun for a game made to learn the basics. The game is far from perfect, but it's beautiful.
You could make different difficulties with a different number of safe spots. For example, 3 on easy, 2 on normal and 1 on hard, and also there could be an optional marker on the safe spot if you want to play easier.