Before attempting No-Item clears, I recommend getting the ability to use sub-items. You will unlock them on Day 6. Sub-items with passive skills do not count towards the item use count, so the card can be cleared without using items while using certain sub-items.

The most useful sub-items are as follows:

• Bloodthirsty Yin-Yang Orb - Shrinks your hitbox.
  
• Tengu's Toy Camera - Speeds up your unfocused movement speed.
  
• Cursed Decoy Doll - Gives Seija a wider shot with 4 extra lanes.

Some spells will have multiple waves and unique mechanics, and I will note specific strategies for each one that I can. If you are having trouble with a specific multi-wave spell card, changing your sub-item might help. Also, to practise a card with multiple waves, the Substitute Jizo can help you get to later waves so you can practise other parts of the card as well.

If you move right on top of a boss, you can deal a high amount of damage with the doll. It ends certain cards really fast, and may prove useful without the doll in some situations.

This is probably an obvious strategy, but later in the game you have to be extremely precise. This needs to be practised well to avoid Day 10, Scene 5 without items. The Yin-Yang Orb helps lessen the precise-ness of this technique.

Using the Jizo as a main item can help you practise certain cards if you are having a lot of trouble with them. Again, it may come in handy for Day 10, Scene 5.

Typically, you should use whatever you're used to, but I found in rare cases that other forms of controls can be helpful. Z and the arrow keys are the most common, while the keypad also allows for perfect diagonal movement. Controllers are a bit of a wildcard, but may be the most precise depending on the control scheme / quality.

On Day 1, you don't necessarily need any sub-items. There is nothing too notable in this section.

There are two options for doding this card: After the dialogue (or after she stops shooting the simple 6-lane bullets) you can fly directly above her and be perfectly safe, or you could try to fit yourself between the bullets when they're close to the bottom. The second method is difficult, but later cards use this without any way around it.

Like in DDC you can dodge the first wave of scales by circling around Wakasagihime, but you cannot do this for the red bullets. As for the red bullets, quickly find an opening and position yourself. Going into the corners may give you a little more time to do so.

Cirno does not have much health here, so the doll can help you end this card fast. The white bullets are aimed, while the blue ones will cross over Cirno. Stream the white ones and read the blue ones fast enough to dodge. Don't stay focused when she shoots them, or you may move too slowly.

This is the hardest spell card in Day 1. Walls of bullets will descend slowly, and they will transform into circular bullets. Each wave transforms lower on the screen, and the last one will be the hardest to read. Sometimes openings may be far away, so if you're having trouble getting past it, the camera may help you get there.

There is a safe spot at the bottom of the screen, but I can't seem to find again. I will upload a picture when I do.

My strategy here is to equip the doll and make long movements and to stay away from Wakasagihime when she sends out a new school. Otherwise, this is a pretty easy spell.

Initially, you can fly up to where Kagerou spawns and use the Hat strategy. Once the smoke appears, move below her and go through the opening. After this, you will have to dodge blue bullets and do your best to position yourself in a way that leaves you with another opening after that. The camera may help you get to the opening faster.

This is basically just a harder version of her normal attacks from DDC. Nothing too special, but don't focus too much or you may not be able to escape fast enough.

Keine will begin by walling you in with card walls from the bottom then the top. I will move into the bottom right corner when she finishes summoning the bottom wall. Once the closest left wall starts to disappear, you should go as far to the left as you can. The waves will repeat, and she will start from the other side. This can be done without the camera. With the doll, you should be able to kill her as she starts her fourth wave.

To avoid this, get Mokou to move into the corner below her, then the corner across from her on the top, and repeat. The doll will damage her faster, but the camera may be a safer choice.

Do your best to get away from the large bullets before they transform, and then move to a spot that you won't have to dodge too many knives. The edges of the screen will cut off the bullets from spawning, which will cause less knives to appear.

This is a slow-moving and high-density card. Nothing too special, and I cleared it with the doll. Just don't panic and you should be fine.

In this card, defeating Mokou will only cause her to use a short attack that is like a slowed down Gengetsu time-out, which may be an obscure hint to actually clear the card. In fact, the timer needs to run out. Equip the yin-yang orb and dodge as much as you can, and if you feel cornered, defeat Mokou, which will reset the danmaku if you can avoid the off-brand Gengetsu bullets.

To avoid this spell card, use the doll and go just below where Seiga will spawn, and dodge the bullets from under you. She has laughably low health.

Just go directly down until you can't anymore. You can even time out the card this way!

Become Benben's hat during the beginning of this card, and once she sends out the rests, fly under her and start dodging the notes. This card is not too dense, but the notes can easily wall you in, so try to escape as fast as possible.

Go just below Yatsuhashi and the lasers can't get you.

This spell card will give you the yin-yang orb as a sub-item. Despite this, it is a very easy card to dodge.

Become Nitori's hat, and be prepared to dodge any stray bullets from the bottom. Eventually, a lot of droplets will appear and you should focus on those rather than damage. Be careful not to be her hat when you beat her, as she might move upwards.

This spell card is not super-dense, but you do have to dodge giant curving lasers. Try to stay away from the sides so you can predict their movement better.

Become Shinmyoumaru's hat for the first section, and when she stops shooting return to the bottom of the screen. Nothing too special here.

To dodge the first barrier, you can sit right next (left or right) to Reimu, and they will spawn behind you. You will probably have to dodge the rest normally. There will be a short chance to become her hat before she starts shooting her red orbs at you, then it will repeat.

Becoming Suwako's hat and dodging the jade from above her works very well. Make note of when the big jade breaks! Basically a harder version of Day 6, Scene 4.

Beat up as many mini-Suikas as fast as you can! Ignore the big Suika and make sure you don't let them get too close to the bottom.

These spell cards are probably going to require a lot of practise. Ironically, the final scene is the one I considered easiest for this day. Fitful Nightmare and Seventeen-Article Constitution Bombs are probably the hardest here.

During the first wave of lasers, you can become Byakuren's hat. After the final lasers are shot, she will start to shoot accessory bullets. Dodge them, and stay in the second wave's safe spots (one is at the bottom of the screen). The very bottom of the screen is a safe spot for wave three, but it is very strict. Choose which ever ones you feel most comfortable in and practise with them. The jizo may be helpful for finding a good safe-spot.

This spell card consists of four waves with increasing difficulty. Waves one and two can be dodged by staying in the same spot, as long as you have found one that works for both the red and blue walls (although it might not always work 100% of the time!) Waves two and four are of particular difficulty. Because of how precise this card is, the camera will not help you. The precision is not as difficult, but you will have to dodge wave two twice without the doll if you decide to use the yin-yang orb.

For wave one, stay near the middle and stay still in an opening. You will have a little time to be Yukari's hat during the beginning of the card, but once you hear the bullets spawn, quickly move down.

For wave two, move to one of the corners and stay where the red (left) or blue (right) bullets are vertically-aligned. Position yourself between two, and move up and down to avoid the other wave, and stay in that spot if you dodged both. Alternatively, you could go into the middle, and try to find a criss-cross you can fit in. It may be less consistent, but using the keypad's diagonal keys (1 or 9, and 3 or 7) may help you position yourself if you dodge one wall, but I haven't tested this yet. Also, aligning yourself against the last bullet that appears before they start moving again may help.

Wave three cannot be dodged by staying still. You will have to squeeze between a descending blue wall while avoiding the red wall closing in from the sides. Very light movements to the right without vertical movement have got me the farthest in this wave.

Finally there is wave four. Here you have to dodge descending red bullets in a strict area confined by blue bullets. The red bullets will fall in a line with a slight curve then stop, which can be dodged with slight left-right movements. After this, they go in seemingly random directions after this. It is sometimes possible to dodge this part with only vertical movements, but be careful. The rest of the fourth wave is free, then the first wave will start again. The RNG here can be pretty bad, so don't feel bad if you die here.

When practising with the Jizo, I recommend to stop shooting if you get hit, so you can practise as much as possible with your extra lives.

This strategy will take you to a second cycle, and Yukari will probably die right when the first part of the third wave starts

Equip the doll, and endure the fire for as long as you can. The Yin-Yang orb won't help you much here. Don't focus too much on damaging Tenshi, as the timer is very long. Try to get a lane or two of your bullets to connect with her, but make sure you're breaking the stones! The purple fire will move upwards without changing directions, while the red fire will fall back down.

There is a small part at the beginning where you can be Remilia's hat, but it's probably not a safe choice. Try to get her to move in a zig-zag pattern, and don't get too close as she will explode if you do.

This card consists of six (that I have observed) shots that will stack upon each other. During the beginning, you may want to go to the right of Yukari to avoid a precise dodge you would have to do otherwise. The doll is my recommended sub-item, but you should use what suits your play best.

Thank you for reading my guide! Idk how to add images though, so those will wait. I might add videos in the future, though.

Cards I have Perfected:

Day 1 - All
Day 2 - All
Day 3 - All but 3 (curse you keine)
Day 4 - All but 3
Day 5 - 1, 4 , 6-8
Day 6 - 1, 3, 4
Day 7 - 1, 3, 5, 8
Day 8 - 1, 2
Day 9 - 4, 8
Day 10 - 8, 10