Castlevania: Castlevania: Improved Controls

This hack for Castlevania modernizes the control scheme to make it more
like Symphony of the Night and Mega Man, allowing the player more
control while in the air.

Complete list of changes:

- Enables the player to control their x-velocity in mid-air while jumping (including while jump-attacking).
- (optional) When releasing the jump button, one immediately starts falling again; this allows the player to make smaller hops if desired.
- After being knocked back, the player regains control after a split second and can angle their fall.
- When walking off an edge, the player retains control instead of dropping straight down.
- The player can jump off of stairs at any point in the climb.
- (optional) The player can land on stairs.
- (Optional) A bit of inertia while moving in the air.

Similar to the Akumajou Densetsu (Castlevania 3) hack http://www.romhacking.net/hacks/3596/ and Castlevania 2 hack found https://www.romhacking.net/hacks/4150/.

Use http://www.romhacking.net/utilities/240/ to apply the hack to your Castlevania 3 ROM file.

Version 1.1 changes:
- Now compatible with https://www.romhacking.net/hacks/3736/ and https://www.romhacking.net/hacks/3759/. Please ensure that you use the correct patch from the zip (other-hacks and the-holy-relics respectively) if you combine this hack with other hacks.

Version 3.0 changes:
- Now compatible with many other romhacks as well (see the folder for compatibility with other hacks)
- Stair landing
- Optional inertia for "weightier" jumps.
- Individual changes can be selected.

Version 3.1 changes:
- Changed folder layout of zip file to be less confusing. Previously, many would-be-players were incorrectly applying the patch for the vanilla version of the game onto hacked versions of the game.

Database match: Castlevania (USA)
Database: No-Intro: Nintendo Entertainment System (v. 20180803-121122)
File SHA-1: A31B8BD5B370A9103343C866F3C2B2998E889341
File CRC32: 39C879BB
ROM SHA-1: EE09B857C90916EDD92A20C463485A610B0A76FD
ROM CRC32: AC1AA8F