#100bm

Yup, Marisa used to have yellow eyes in most of the games, but there are few exceptions.

In Touhou 2 she had red eyes, but she also had red hair. It's mostly visible during the endings, as the dialogue portraits are very small and it's hard to make out details in them.

In Touhou 17 she also had red eyes sometimes, but it was due to being possessed by the beast spirits.

In Touhou 18.5 she only had red/brown eyes in the title screen but had yellow eyes during the dialogues (mostly because for the dialogues she reused her portraits from Touhou 18, see /post/701001316149886976/).

In both Touhou 19 and Touhou 20 her eyes remained red/brown.

I'm not sure if there's any lore implications behind the eye colour change since 100th Black Market, maybe there are but I'm not the right person to ask about lore. It could be also that ZUN just decided to change her design (or forgot she had yellow eyes).

In Unconnected Marketeers, the order of the cards on the game HUD is reversed than how it is in the menu (in the gif above: Alice -> Okina in the menu, but Okina -> Alice when the stage begins).

While Koishi's card from Unconnected Marketeers was showcased long ago in another post (see /post/671035007782060033/), it was before the announcement of 100th Black Market so I wasn't expecting another card game. I won't delete that initial post, but I will add here some remaining details.

The card's description is slightly changed between Touhou 18 and Touhou 18.5.

As for the ability itself, you can still fly over regular enemies without being hurt by them.

However, when you are hit by a bullet, you power can actually increase in a specific situation. Being hit while your Power is 1 will increase it to 2. If your power is a higher number and you get hit, it will just decrease by 1 level each time, but it won't go lower than Power 2.

In 100th Black Market, Wakasagihime's card is an Active card which grants you the ability to become invincible for a short period of time.

In Unfinished Dream of All Living Ghost, Orin's wheelbarrow card gives you an additional option from which you shoot spirit-like bullets, while Orin's cat card gives you the ability to not be harmed by stopped spirits (orbs, beast spirits, powered beast spirits and even the red evil spirits).

The stopped powered beast spirits launch from time to time some bullets so you'll need to be careful not to be hit by those. The stopped red evil spirits pulsate periodically and when they do your invincibility towards them won't work anymore and you will lose a life. So please be cautious with these two.

I've also checked if hovering with your scope over a mini Suika will do anything but she doesn't stop and I lost a life when colliding with her. Similarly, any unstopped spirit (orb, beast spirit, powered beast spirit and red evil spirit) can make you lose a life when you try to fly over it.

Utsuho's cards are Active cards which grant you the ability to summon a large sun that deals great damage to the enemies. In Unconnected Marketeers it keeps eating your power while it is active on screen, but in 100th Black Market it only eats 1 power upon being summoned. The appearance and duration of the sun is slightly different, but the card itself is also a little bit different between the games. You can check the cards' description here: /post/701276547738451968/.

Tsukasa's cards are also Active cards which eat from your power when summoned. In Unconnected Marketeers it eats 1 power and unleashes a bomb, even when your bomb gauge is empty. In 100th Black Market it eats 1 power and unleashes a spirit strike.

In Unfinished Dream of All Living Ghost, Tsukasa's cards only grant you additional shot options.

The blue card is called 霊力の標本瓶 in Touhou 18, but 狐入りの管（縦）in Touhou 19. To see the cards descriptions differences between Touhou 18 and 18.5 please check /post/701276547738451968/.

Ran's cards in Unfinished Dream of All Living Ghost, like Tsukasa's from the same game, are only giving you additional shot options.

All three of them are Equipment cards, which offer you an additional option from which you are able to shoot bullets.

Cirno's card gives you a similar option to the Summer sub-season from Hidden Star in Four Seasons, although compared to that, this one shoots more chaotically.

Sakuya has two cards, a grey and a pink one.

The grey card resembles Sakuya's shottype from Unconnected Marketeers: green knives when unfocused and red knives when focused. The unfocus option can tilt depending on the horizontal direction you move (if you move to the left the green knives will be shot to the left at an angle). If you focus, you will lock the current position of the knives so you can keep the knives shooting at an angle to the left even when you are moving to the right. However, as soon as you unfocus, the knives will switch to their regular position depending on the direction you are flying.

The description of the card was slightly updated in 100th Black Market, where it seems that a full stop was added at the end of the second paragraph.

The pink card shoots ricocheting knives. There is a bug where the knives would not be shot from the correct option (for more details please check /post/788725139010437120/).

Youmu's cards give you a phantom option similarly to Youmu's ghostly half. In 100th Black Market, the "Half-Half Ghost" is closer to the player than in Unconnected Marketeers. The "Spare Half-Ghost" exists only in 100th Black Market and sits at a slightly increased distance than the "Half-Half Ghost" in Unconnected Marketeers.

Besides the distance from the player, the behaviour of the phantom is the same, therefore I will only include gifs from Unconnected Marketeers to show how it behaves when you move left-right or circle around, focused and unfocused.

The first paragraph from the description of the "Half-Half Ghost" card was changed in 100th Black Market.