Arrange Original is harder than Arrange Boost, but it's also more fun to play due to the ensuing chaos. Manual is suggested because somehow Manual fills the gauge faster? Maybe it's just me. If this is true, then there is worth in removing the training wheels called Semi-Auto and manual it away to quickly regain shields.
Speaking of the rank system, when on Low the bullets seem to turn into its Novice variants. It'll revert back to the Arcade patterns when on high. If you're pretty much used to the Arcade Original, this mode should be nothing for you. When in doubt, always regain your shield! The pattern will be on Low when you're at it. Again, Focus Search combo is my favorite.
A little side note. I heard the game was directed by a CAVE games super player, CLOVER-TAC. That would explain the game's CAVE influences, a lot.
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