What difficulty order would you guys place the WA series into?

Hmm. I was more thinking about

the Z-bot at the end of the game.

I skip levels too much in WA. Does anyone have any ideas on how to break this?

I'm on Barren, I've searched EVERYWHERE and I cannot find a place to use this token at. Is there a specific place I have to stand at in that place with the symbol that looks like the once I have? I'm really confused.

For the first puzzle, here's my answer

U is Blue, D is Yellow, R is Green and L is Red. That would make Yellow on side Down, and the side's color that Yellow is opposed to is Blue.

Quite a nice little puzzle you have here.

Definitely WA1. It's the original.
And it has fun arcade games.