I have warnings and tips regarding it, and in the end I'll recommend which type of games would be helpful:
1) Now there are some programs that translate your screen in-real time. For example Gaminik is one of these programs. Or you can use Google Gemini by putting a screenshot of the Japanese text for quick translation. You may use Bandicam for a quick screenshot.
2) Not many languages are complex, rocket science and forces you to learn the culture to understand the language as much as American English. A person may need to spend 2 decades and constantly learn American English to understand what natives trying to convey among "deeez nuts deez nuts that L take u sus so prob" or something, however a person can learn Japanese in a 1 year because you are not so tied of learning the Japan's culture as much as American English. I've learned 3 languages which one of them is Japanese before learning English so I know how much hard time I had with English lol.
English is hard because how words are depends on time and meaning, English has BS grammar, rules of grammar can change depending on the way sentence is going and all. Japanese is not like that. Words stays same but depending on your usage you modify the word. So you won't deal with these BS like: "See -> saw -> seen" and "did see", "have seen", "was seen" (and learn how the word "seen" changes because of have and was lol).
Japanese is simple and if we had to understand Japanese in English way the sentence would be like this:
English sentence: "I have just eaten a red apple."
Japanese sentence "Red apple eaten.". Japanese can be understood without being so precise and detailed as much as you gotta be in English, otherwise if you wanna be formal you can fiil all the detail in Japanese sentence for "I have", "just". Perhaps native English speakers can have a hard time understanding Japanese if they had expected how grammar and time and how these effect words and sentence would be valid for Japanese too but it's not like that at all.
So why English is hard?: It's a robotic overly detailed, precise, devoid of emotionality and necessarily formal while Japanese is way easier because you can talk in any way you want and people will get you.
3) People are afraid of there are 3 Japanese alphabets and they fear Kanji is an "alphabet type" that's like "dude this alphabet has like 300.000 letters!!!!". In reality Japanese is very easy to learn, it's just learning to read Japanese takes time to learn. Due to the way how language works is very different than English is you gotta adjust your brain in a way you can think Japanese to understand Japanese otherwise you cannot learn any language that's not similar to English.
As for Kanji, Kanji has "group of letters" that look similar and therefore it likely means they are about the same category. So when you learn few Kanji words you can understand like 3000 other words.
Kanji words have logical shapes. For example word for tree looks like a tree, word for "human/person" looks like a person. And there are other logical stuff eases your education: Word for bird has a dot in the middle, but word for crow doesn't have this dot but rest of the Kanji word is same because "you can't see crow's eye so the Kanki word lacks the dot".
But Kanji is not that simple, some words have abstract shapes that you gotta find that meaning in your own way to understand the art of Kanki. It goes beyond of associating white birds with freedom, you gotta be able to associate some horizontal lines meaning "shop" or "power".
Some Kanji words are made of other Kanji words like some part of it is part of the other Kanji. Gotta notice these.
You need pattern recognation to get the common shapes between Kanji words so you can understand word for physical stuff has certain shapes, and abstract words have another particular shapes, and words for action as in verbs has their own shape styles.
In the end as long as you are open to learning Kanji it can be even fun!!!! For me it seems like meeting with lots of family and their members, and name of these "people" as in Kanji words are how to pronounce them.
Naturally some words have same pronouncing, as how different people can have the same name. That's where Kanji comes in so looking at the Kanji you can differentiate the words.
However when you get used to reading Japanese you realize this: From the start of the sentence you can predict how the sentence will go on. It will make you skip even looking at lots of Kanji words because you will know which Kanji it may be in between.
Other than these in every day Japanese there are lots of English words that written in Japanese alphabet so you gotta be able to notice these words too.
4) Real hardship of reading Japanese text is actually able to see tiny differences in Kanji. I hope you have a glasses!! For video games, their fonts make Kanji words looks so different so you may don't recognize them.
5) Japanese basically have 2 types in the context of what the Japanese is used for. The every day Japanese is different than the Japanese in manga/anime. If you had learn manga/anime Japanese and try to talk to people with that Japanese you'll song like speaking English you learned in American rap songs lolol. In this context what kind of Japanese you gotta learn depends on the game you want.
6) When it comes to learning anime/manga Japanese things get harder and I don't really know much anime/manga to recommend you to ease your education so I guess after getting used to playing games for children you may jump into your favorite anime/manga that doesn't require technical knowledge or something.
7) You may learn Japanese from video games that's not about manga/anime. Slice of life games that targets little kids in general would be what I would recommend. For example you may play Boku no Natsuyasumi games and whatever Nintendo's games on Nintendo Switch due to the way how much dialogue there are that's about every day Japanese language that's written in a way kids can understand. You may play Pokemon Sword, new Zelda games and Animal Crossing games.
However some games for children is not okay to learn Japanese because they tend to use regional dialect to make some characters "interesting and different" therefore you would have a hard time playing, for example, Ni no Kuni. Perhaps after you are good enough and wanna improve you may use Ni no Kuni games.
Lastly I wanna say I'm currently learning Chinese and it's even easier than learning English!!!! lolol
