The game has huge potential, but at its stage there's still bits and pieces that needs to be ironed out, like the general movement feel at momements a bit stilted and blocky.
I've also found particulary interesting the idea of many of the codes are mathematical calculations, but the executions makes them unclear and unreliable unless they are simpler additions or subtractions - generally, players would be just fine if we didn't had to have a calculator to execute math every time we have to open a door or find an hidden code.