Overall, a good game. It gets boring after some time because the difficulty doesn't really increase. The medals are a nice addidtion, but I didn't like the upgrades :(. Would be nice to have upgrades that increases the value of a coin or increases youir score gain rate. Also the shield is quite unclear, you can have 50 but you can't use them yourself. It just sometimes pop and saves a life, but it would be cool to have a button for it.