I didn't see how the 2D and 3D was connected other than the way to enter the game, was there anything more to it? The gun animations were nice tho.
That was kinda it, the plan was that winning the 2D would give you cool gun upgrade for the 3D but didn't get to it. It was a over-scoped idea.
definitely should've settled for 2d early, that's my stubbornness on display right there.