Board Thread:General Discussion/@comment-28844266-20160625141816/@comment-28394344-20160702123028

The green mode is you blocking attacks instead of dodging them, or, in other words, defending yourself rather than rushing through to deliver a strike, — the thing that you would do as a person kind even to your enemy, to some extent at least.

...and its also about having naucea.

As for light blue/orange modes, my guess is that light blue mode would make you tiny (just like the snowball) but halve your speed, so you use your size for dodging and watch out for moving more precisely, while the orange mode would add some momentum to your movement, or, as said above, just make the SOUL continue moving unless the other directional key is pressed, or even till it reaches the bullet board's edge or another obstacle like that.