Fairly simple== Action Canceling ==Leon and Pumpkin can cancel into other things, such as jumping, using items, and sub-weapons. There's a small window during (almost) every action where you can start another action before the current action's animation finishes. Stand Doing this immediately cancels whatever action you're currently in the correct place middle of and hover over your begins the next one. Not everything can be canceled into though. Whips can only be canceled into Sub-weapons and jumps, but not items. The "correct place" seems to Sub-weapons can be limited to very specific hallway typescanceled into anything, only seen in certain areas and items can be canceled into anything most of the castletime. The Item Duplication can’t performed in PAL versionIt seems to depend on what item is being used. Duping items allows Jumping can't be canceled per se, but the moment you land you to keep a full stock of extremely broken items that were never intended to be used in mass quantitiescan start another action immediately.

[[File:LoIActionCancel.gif|thumb|Example of Action Cancel with Sub-Weapon and Combo Damage]] == Gems ==Thanks to [https://castlevaniaspeedruns.com/Castlevania:_Lament_of_Innocence/Item_Duplication | Item Duplication] jewel crusher is the core of Leon and Pumpkin categories. It destroys Jewels and releases their hidden magical potential. When equipped, the description of the Jewels changes as follows:*Diamond - Grants a full HP, MP, and Heart restore.*Ruby - Deals 119 damage to everything in the room. Can be mitigated by special defense, and won'''Theret affect anything that's two in immune to damage at the Castle Entrance:'''time.*West HallwaySapphire - Deals 50 damage to everything within view, and restores 8 HP for every hit. Can be mitigated by special defense.*East Hallway Turquoise -Randomly changes the sub weapon to something that's not the current subweapon. All of these gems are vital to a run. Rubies destroy entire rooms with impunity, and make good combo extenders in boss fights. Sapphires make decent substitutes for Rubies when you need to conserve them. Diamonds allow you to spam Hi- Speed Edge continuously to get around faster. Turquoises make it possible to have the optimal sub weapon for every situation. == Subweapons ==Every sub weapon is used a lot but not every orb combination is. Some notable ones in this runAny%:'''There's three *Axe (No Orb) - Important in Garden Forgotten by Time:''', and against Medusa.*Two Spiral Axe (Axe + Red) - Used twice in the hallways connecting the square House of rooms in Sacred Remains, Primarily to conserve the southern sectiongems*Wind Axe / Axe Tornado (Axe + Purple) - Used Three times*One in the hallway leading *Primarily to the switch take down ogers Cyclops**Setup in the southeast section'''There's four in Pagoda first room for Dark Palace of the Misty Moon 1F:'''Waterfall*One Hi-Speed Edge (Axe + Green) - Used everywhere after the Green Orb is obtained. Fastest form of movement in every hallway except the one leading game**Roughly 50% faster than walking ~ DragonDarchSDA*Spirit Ripper (Axe + Yellow) - Used against Walter to 2Fget a high combo'''There*Michael's five Sword (Cross + Purple) Used twice in Dark Palace to deal with enemies and once in Pagoda of the Misty Moon 2F:'''Anti-Soul Mysteries Lab**Primary damage source against Joachim*One in each hallway connecting to *Also core on golem’s second phase before the Candle Roomruby spam*One Holy Light (Cross + Green) - Used against Golem phase 1. Keeps him constantly going in each and out of the long hallwayshis guard stance, and does significant damage due to double hits.== Visual Guide for Duplication spots ==*Satellite (Crystal + Yellow) - Used against Doppelganger 2 to keep him stunlocked.<gallery mode="packed*Roaring Flames (Holy Water + Red) -hover" widths=300px heights=200px>File:Duple_East_HallwayUsed for Undead Parasite phase 2.PNG|East Hallway SpotFile:West hallwayHits 4 times and allows just enough time to cancel into a whip without dropping combo.PNG|East Hallway SpotFile:Dupe_Pagoda_of_the_Misty_Moon_1F.PNG|Sub*Cross Blazer (Holy Water + Purple) -weapon roomUsed for Undead Parasite phase 1**Able to hit 2 eyes at once, speeding up phase 1 considerablyFile:Pagoda_of_the_Misty_Moon_2F_Hallway.PNG|First Hallway spot**Can also be used against doppleganger 2 for safer optionFile:Pagoda_of_the_Misty_Moon_2F_before_the_IV_tablet.PNG|Before *Force Cannon (Knife + Green) - Used against Succubus, and the I,II,III,IV Tablet Ogre duo outside of her room</gallery>.