Devil May Cry help

[Pavey]

Need some tips.

Im on level 20,Showdown with Nightmare, and have just returned to the game after at least 6 months, and consequently am a bit toilet.

Realise i have to hit the ball in the big slug thing's back, after hitting/illuminating the shield on the wall, but what attack gives the most damage?

Massive damage would be nice. Is level 20 the last one?

[ItsThere]

You just go devil trigger - use Alastor and hit it with the
attack - slight pause - 3 attack combo.

Works quite nicely if you jump on its bacl a la Spider boy.

Level 20 is not the last level and you have a couple of tough fights left to go!