Neat, yeah 2.5 isn't much more difficult to pull off than 3D, provided you've worked with 2D stuff like spritesheets.
And yes the game was made in about two weeks. But it's a team of three, I work professionally in Unity, and I cribbed a bunch of old code to get some basic systems (mapping, cutscenes, sprites, audio) all going. ...and didn't get much sleep haha