User blog comment:Jopjopjop/Volume 20 Spoilers/@comment-79.112.26.210-20150805141055/@comment-26865730-20150808024110

The Afterword summary says:

"There is also no more intended power-ups. (Not quite sure about this one.)"

That seems a little unclear to me.

Also, it seems like "Dragon deification. It is the absolute power only Ophis can bestow." is the real power-up here. The quad blaster thingy is just an ability that came with this change.