wow, 6 hours to get all those medals but it definitely was fun. The medal that gave me the most trouble was beat the game with no coins, it's really frustrating when you come across jumps that need either the double jump upgrade or coin jump and I also came across some 1 square gaps that were blocked by a coin and I had no choice but to restart. Oh, i also had an idea about that, since you are collecting zero coins and get the upgrade, the coin shooting upgrades should be deactivated when you have zero coins. One more thing, I had no idea how to activate stealth and had no idea how it worked.