Nice original gameplay mechancs, but either authors run to a dead end with them or were somewhat lazy because the game could definately be longer and contain more different stuff.

The ending puzzle is really well thought out trough.

A few words about medals - all they are is complting this game all over again using different character skins, gets rather tedious. The secret medal requires guessing somethin non-intuitive and pointlessly hard, better search the code on internet as I admit I did.