(I added my suggestions in this reply to remove bloat)
Suggestions based on 0.5.2 LIVE
GALLERY FIX
When clicking on gallery images they appear behind menu and gallery menu, making it so you have to move the tabs out the way, making it hard to use gallery.
Small hint when clicking locked images, nice when juggling all the choices and endings in everlust glade. Although i got all locked images, i struggled with the sceptre for a bit
Replay with accompanying text would be nice
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PURPLE ONE
There is a pop up named PrideMonth with a purple looking byte (Also are the species Byte, bit and qubit called something?)
I know you already probably have her planned but i want to mention some suggestions:
Assuming her name is Nibble, a scene of her dicking Byte down, doggy style, while nibbling her ear would be hot. I guess their appendage would be either from a strapon, or futa (this being from either attachment, digital creation or the upgrades the others talk about). Blowjob, mating press or standing full nelson could be hot for this.
A collar with loveheart dangling tag (petplay). Making the purple one call Byte a good girl or good puppy. I assume the purple one to be more loving than "rude" like the others. Collar could just be an idea for Byte wearing it or someone else.
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BRAIN DANCE
Was unsure about it at first but really enjoyed both brain dances. I wish for a Knot city 2, that is as large as Everlust Glade as Knot city is pretty small in comparison. Could have a Red/Pink light district.
A new idea for a brain dance could be Cyber space, named "Lewdness_In_Cyberspace" or something. With 3D Byte end screens (Honestly just want more 3D Byte in any shape or form). Some areas could be the Darkweb and the NSFW area of the internet. Another could be a corrupted area. Currency could be Byte-coin (Bitcoin). In the NSFW area you could record a brain dance (that was mentioned by Birdman in Knot_City, but there was no braindance end screen so i want to put it here), it could be pole dancing or be a POV of a human using the braindance, having Byte cowgirl the user.
Another end screen i was thinking would be hot, is an image of Byte with a see through VR headset (using a braindance?), with flashing lights from screen while body spasm/masturbating with dildo. This could be in Knot_city_2.
Running out of related theme brain dance ideas but another one could be set in Space.
Persistent save: I know you mentioned memory problems but my program crashed sometimes and had to restart which was annoying. If possible i think 2 or 3 saves would be nice
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CORRUPTION
As the red malware makes Byte horny the purple could corrupt Byte and change her personality into something like making her dominant(femdom) (Wanted something like malware but something unique instead of the same old make her horny). This makes her dominant towards Bit or do something like fucking the Malware dog out of existence (idk).
Yellow update could give upgrade, like boobs for boobjob. No idea about green, would be cool if there were more colours. Unrelated but when Byte is orgasming, the face could be flashing through colours like on the crt test screen (or just display the crt test screen). or a white noise screen, "Please stand by" screen, "We'll be right back" or any other screen related "failures".
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AUDIO
Giving Byte moaning sounds would be hot, maybe a synthesized sounding one?
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POKEBALL
Want more pokeball animations (Especially Gardevoir, can't believe that wasn't in she's like the hottest before lopunny (all jokes))
Some pairs:
Gallade/Byte Gardevoir
Lucario/Byte Braixen/Delphox (More of a delphox fan but either is fine)
Zekrom/Byte Reshiram
Incineroar /Byte Primarina
(idk)/Byte Zoroark
Salandit(Honestly could be something else)/Byte Salazzle (femdom)
The malware and corruption could be used to get great ball, ultra ball and master ball?
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Renamon
Mal0
Just some ideas that are furry and digital related
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User interaction with Byte
As another commentor mentioned, a minigame, like a rhythm one, could be hot as that is how you fuck her?
Or something that has interaction, like rubbing to fuck her or feel her?
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Some way to Robot Clone Byte, for an orgy, or selfcest?
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TERMINAL
A "Byte says"
A way to trigger "Ascii sex scene" and find hidden "Ascii nsfw art"
A way to boot up a Doom clone? Where you can fuck the enemies you kill like that H-Doom mod
A way to boot up a Dating sim?, something simple where its like a Just Monika screen? or one with multiple routes but short. Like you go left you break your leg, you go forward hit by a car, you go right you get nuked. Something where your choices lead to drastically different nsfw endings
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Note:
The arcade minigame is fine, but gets boring pretty quickly, some minigames with a little more substance would be cool, like minesweeper? idk i personally cant come up with good ideas.
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I ordered my suggestions in order of personal importance