Rabi-Ribi

Have 25,000 EN and talk to Rumi (in the house) to get all the available buffs. The buffs don't start counting down till you leave Rabi Rabi Town.

DO NOT use Cocoa Bombs as it will damage both cats with the same amount of damage given.

DO NOT use heal items (besides Ribbon's green magic) as it'll heal the cats too (varies on the item) and gives you debuffs that reduces your SP, Speed, and Jump Height and will give the cats buffs to recover and drain your MP.

You will be prompted of what boss fight to pick in the Halloween Event when you get to that point. Patterns of attacks are the same between the two difficulties, however you'll be facing more bullets and harsher versions of the patterns in special, and the cats will have higher health (not higher level) or stronger defense, and stronger attack damage. This will take a few attempts, but you'll eventually get the muscle memory.

Shortly after the fight starts when the two cat girls appear, pick a cat and, as best as you can, keep attacking her. The goal is to get one down ~24 levels of health than the other, however they both start with 39 levels of health and it's not difficult to bring it down a level. You will be damaging the other by accident, and by chance, but very little compared to the one you're targeting the most. Mind where you're aiming with Ribbon's Magic depending on what Ribbon-related items you currently have and magic you use during the fight. Use magic that doesn't penetrate by default, in case they're grouped together or are in the same pathway. Don't be afraid to use the hammer as well, as it'll help greatly.

When you get one of the achievements, throw away the fight or do a quick load (spacebar + V in the menu) and repeat to get the other. There is an auto-save JUST before you enter the arena, so you don't have to keep traversing over the giant gap.

This works great for 0% item runs. Before you go into the library after Irisu, make a separate save file. It is recommended to have Health Ups, Movement items, Attack Ups and any Ribbon upgrades.

Most items will count 1% while some will be <1%. Every time you get an item, check the item % (ALL) in Map section of the Menu as it'll give you a decimal.

This is what I had at 22.60% items.

• Carrot Bomb (For items and short cuts)
• Super Carrot (Optional)
• Air Jump
• Rabi Slippers
• Sliding Powder (Level 2)
• Bunny Strike (Level 1, optional, requires Piko Hammer to use)
• Wall Jump (Level 2)
• Speed Boost (Max)
• Sunny Beam (Yellow Attacks)
• Chaos Rod (Purple Attacks) - On boost attacks, Irisu will get the Curse debuff, which works great against her Health Absorb buff. Simply get yourself hit from her attacks while both Curse and Health Absorb are in effect. Keep an eye on your health as well!
• Explode Shot (Red Attacks)
• Carrot Shooter (Orange attacks, Optional)
• Max Bracelet
• Plus Necklace (Max)
• Auto Earrings (Max)
• Book of Carrot
• Consumables (Donut, Cake, Carrot, Bomb does not count to the item %)
• 11 Health Ups (2 Bought, 9 Found)
• 8 Attack Ups (4 Bought, 4 Found)
• Eggs (Many as you can find, does not count to the item %)

Badges

• Health Plus
• Pure Love (to avoid character contact damage)

Additionally Recommend

• Piko Hammer (for melee damage)
• Healing Staff (Green Attacks)
• Atk Grow (Badge)
• Def Grow (Badge)

Feel free to make any adjustments to this as you want, this is only a general idea and not an exact solution.

(For information on the items and where or how to get them, please refer to this link for items, and this link for badges however they will not tell what item % they will give. The site may be slow to load information.)

Tip

• Purchasing your first Health up, Mana Up, Regen Up, Attack Up, and Pack Up counts as 1% each, however any additional purchases will not count to the item %. (Example: 5 purchased Health Ups and 3 purchased Attack ups count 2% instead of 8%). Any found will count usually ~0.4%. Keep in mind the price on items max at 9,999 EN
• If you have your preferred items for battle and depending how much lee way you have left, grab some more items that may be beneficial or to get into the % range.
• Don't forget to check for any shortcuts in the library with Ribbons Magic, Carrot Bomb, and/or Piko Hammer. Some things may be different than a 0% run. If you find yourself stuck in the path, go back to a save before you entered the library and make any adjustments before trying again.
• Buffs from Miru will help, but check to see if you can transverse the library first before spending 25,000 EN.

Notice

• There's a bug that if you have the item % at 19.89-19.99 or 28.00-28.06, the achievement may not trigger. Stay between 20-27% to be on the safe side.
• This may be bit of a grind in terms of purchasing and upgrading items from the store
• On the items I had, Irisu's attack patterns would repeat itself one more time as I wasn't doing enough damage and made the battle a bit longer than it should. However, when her attack patterns repeat, she'll get a Defense Drop debuff till her health is low enough for the next stage of attacks.

Fun Fact: 19.88% and 28.07% are a reference to a date that is important to one of the devs of Rabi-Ribi, Gema, however the meaning of the date is unknown. (Not the dev's birthday)

This is something that is missable (along with 1 of 3 easter egg in that map).

The base is in the Warp Destination map, and can only access it when teleporting a third time from the Stele. (If you missed your chance, either start a new game or wait till you clear post-game to be able to go to Warp Destination--and you'll have to take it in the same amount of trips.)

You'll be starting from the far left and have to keep going right while battling through geeks and their cellphones. Once you get to town, before you head to the next area, keep an eye out for a building that is sticking out from the right side. There is a door you can enter. Go left to get an easter egg, then head right and use a carrot bomb on the stack of boxes right of the door.

Go to town with your hammer on every developer in that building and enjoy their dying message.

I'm unsure if you only need to hammer GemaYue (top-right) or everyone. Either way, they all have 1HP and don't show any resistance prior to approaching them.

Warning: The outcome of this achievement brings a massive spoiler to the story. Strongly advised to do this after you played both main and post game if you're invested in the story.

This achievement can be done between chapter 3 to before fighting Rumi in Forgotten Cave II (faded red section) in Southern Woodland map in chapter 6.

Requirements
Must have Cicini recruited and have, or finished, a quest from her to find Syaro in the computer (don't need to find Syaro).

Items: Piko Hammer, Carrot Bomb, Air Jump, Rabi Slippers, Sliding Powder, Wall Jump, Air Dash (requires the Piko Hammer to use), and Bunny Amulet. Don't need to upgrade any from Miriam's shop.

• Hammer and Carrot are found in Starting Forest (green area) in Southern Woodland map. Carrot is after the Cocoa battle.
• Rabi Slippers are in Rabi Rabi Park (red-ish area) section of the Island Core map (next to the exit of UPRPRC secret base). Able to get them with Hidden Tech without having to go through the base.
• Air Jump is in System Interior. You'll come across them along the way. Can use Rabi Slippers or Hidden Tech to get it.
• Sliding Powder is in the Exotic Laboratory (violet area) in the Eastern Highlands map. Requires the Carrot Bomb. Is two rooms to the left of mini-boss "Mr Big Box", a red machine monster, or left of the 2nd save you'll find if not taking shortcuts. Can get it at chapter 2.
• Wall Jump is in the Spectural Cave (violet area) of the Southern Woodland map. Requires Rabi Slippers, Air Jump, and Sliding powder. From the teleport location: Left, Up Left, Up left, Down. It'll be in that room on the far right.
• Air Dash is in the Sky Island City (purple-ish area) of the Western Coast map. Requires the Carrot Bomb, Sliding Powder, and (optional) Rabi Slippers to help you get out. Three rooms left of the first save point.

Head over to the room on the bottom left of the room with the Pack Up (yellow potion) in System Interior I (blue section). Reference: https://rabidb.com/map?name=system_interior

Go to the farthest left wall in the room and do the following:
Double Jump
Wall Jump
Air Dash Left
Second wall Jump
(Optional) Amulet to not miss the ledge on top.

When you enter the next room on the left, this achievement will trigger with chapter 7 dialogue. You do not need to go through System Interior II (red section).

Notice: When you get through System Interior II the story will progress as if it's in chapter 7 leading up to chapter 8. Floating Library (green area in Western Coast) will be unlocked and will ask for everyone (but Keke Bunny) to be in town. Your save file will read Chapter 8.

Quick Drop: Jump then press Jump+Down while in the air. Do it three times, this achievement will unlock.

Reverse Wall Jump: This one is a bit tricky but not too difficult: Face against the wall then Jump towards it, as you touch the wall, simultaneously face the other direction and hit Jump again. Do this 3 times, and this achievement will unlock.

Wall Kick: This is a combination of two Hidden Techs: Reverse Wall Jump and Quick Drop. You need to pull off a Reverse Wall Jump and Quick Drop in that order while between two walls. Reverse Wall Jump → Touch other wall → Quick Drop. Do this three times, you'll get the achievement.

Zero Distance Burst: This requires the Healing Rod from Miriam's Shop.

This will be a bit tricky as you have to place ribbon roughly in front of the enemy's hitbox. Have a fully charged shot ready, place ribbon somewhere in the middle of the enemy but a bit in front of them (if facing you) and release. Best to do this against the UPRPRC members as they're the same height as Erina.

Do this a few times for the achievement to trigger.

Roll and Attack: This achievement requires the Hammer Roll item, which is in Evernight Peak, and you need the Bunny Whirl item, which is in the Golden Riverbank, in order to get the Hammer Roll.

Now the technique for this achievement is tricky and may be hard to pull off often: Hammer Roll into an enemy, and then quickly UP+Melee into another enemy above it (or same enemy if it's big enough). This will take many attempts to pull this off as you won't always be able to do the ground UP+Melee but may end up doing a mid-air UP+Melee instead, which doesn't count towards the achievement.

Do it successfully enough times and you'll unlock this achievement.

This guide by UPRPRC Serene♪ is very helpful. There are reported 25 possible eggs to get with 0% items. Be aware, you will be doing this run up to the Irisu fight, post-game final boss.

For the eggs that are marked in their own section, here are the ones I recommend to get.

• Southern Woodland: All 4

After defeating Rumi, use the teleport stone to go back and collect egg C--no enemies to encounter.
Egg D will take a few attempts of map-resetting and careful mob clearing. The red bomb has to be on a sweet spot on the stairs to clear the blocks for the egg as the range on it is smaller than the visual blast wave. Be mindful of how you damage the red bomb girl as I notice at low health she'll constantly back up and throw bombs, often requiring a map-reset.

• Western Coast: A (1)

B in the pyramids is possible but not necessary if it can be helped. Requires the amulet to have 4 charges--after you defeat Rumi in the post game. Also need Cicini to get her Speedy Buff. Amulet Cut buff from Kotri can help if needed. The guide explains enough how to get it, the issue is execution of timing on the Wall Kick, when to use the amulet's charges, and getting to the pyramid from the teleport stone quick enough. Use the save stone in the pyramid (room right of the spring) to recharge the amulet faster if need be.

• Island Core: A & B. (2)

• Northern Tundra: A, B, C, D. (4)

Best to fight Seana EARLY and not LATE due to limited movement in water to get egg D. Her attacks are brutal in higher levels that may force you to use all your health items if you battle her after Chapter 6--the only chapter to get health items without ruining your 0% run. Facing her early helps deal with her on the bridge when she's doing her magical concert on the western bridge of Rabi Rabi town.

• Eastern Highlands: A & B (2)

IMPORTANT: A can only be acquired during Saya's battle. You may attempt to NG+ your way to Saya, but the mini-boss fight of UPRPRC's in Evernight Peak will virtually wall block you with their beefy fairy's (too much health, not enough damage to give even with Level 3 assistance). If you missed the Saya one, you have better chance going for the Pyramid egg--being my 20th egg.

• Plurkwood: All 2

Be mindful there are points you can't backtrack when going clockwise.

• Subterranean Area: A & B (2)

During Post game, you have up to 2 attempts to get the B egg before entering the hall of memory. Despite what the guide says, get this either before post-game or your up to first two attempts in the post-game. Thankfully there is a safe point you can use to your advantage.

• Warp Destination: See my guide for "Strike into the CreSpirit secret base!" of how to enter. (1)

• System Interior: All 2

Despite the Red section isn't that difficult, it's best to get it when going through it once as part of the post-game.