Cool cutscene explaining that this is a digital world.
Multiple paths showcasing the passcodes strengths is pretty nice.
The skill combining is a cool idea.
The map feels like a small castleground!
The sword and data-wall passcode power.
Dislikes:
The ramp on the right doesn't give enough height to clear the water at the edge, so the player takes damage.
The game does not tell you that you have a basic gun attack while you don't have any passcode powers.
The enemies on the ledge on the right path are able to shoot down towards the player as their fighting the fire enemies. Making the trek and encounter more difficult.
The fire and data-wall passcodes being on opposite sides of the map make getting that major data a bit longer than some might feel is neccessary
Not having I-frames is pretty rough... Walk in the wrong direction or pi** off enough enemies, and you're bound to take a lot of damage in a really quick burst.
The game does not explain the basic mechanics that the player has. The player doesn't know that they can double jump, or shoot a gun.
The map is too small, yet a little too big. I think a path between the left and right side of the map would make the map feel a bit better to traverse. That way you don't have to backtrack through the whole side to get to the otherside.