maybe they capped it at 255 then because they didn't want there to be the possibility of displaying 4 characters for whatever reason, and 255 is a nice "round" number
He only got the translator once. The game increments your % at the beginning of the cutscene, and it gives you the translator/disables the cutscene at the end. So all he was duping was the % increase, and he didn't actually get the Cobalt Translator until he let the cutscene play out fully without duping it.
edit: I'm just gonna quote what Miles wrote in the video description:
Quote:
The Translator cutscenes give you 1% at the start of the cutscene, but don't actually give you the Translator or remove the cutscene until it ends. By getting Light Suit before one of the Translators, and warping away at the same time you finish the scan, you can start the cutscene as many times as you want and get 1% each time.
This trick can be used to get up to 255%, which is the maximum possible. No, it does not roll over or anything like that.
It's probably easiest to do this with Cobalt. It's important to avoid events that add a scan to the room (getting Spider, Main PBs or Echo adds a scan telling you where to go next), as those scans take priority over the Translator and would make this trick far more difficult.
I'm not sure how large the window for this trick is; a random guess is 3 frames. There's two possibilities: the first is you finish the scan and then enter the teleport the frame afterward (the first attempt in this video), in which case you have to select on the map blindly; moving up and mashing A usually works. Otherwise you can finish the scan probably up to 2 frames after you use the teleport (the second attempt in this video).
It's the same deal with missiles really. Your missile counter won't increase past 255. Yet Miles showed me a picture once (maybe he can post it if he still has it) where he'd hacked the game and changed the internal missile cap, and had like 2147483647 missiles. So clearly it's not an 8-bit limitation.
parax that is so weird - my guess is what i said earlier then, they wanted everything to be limited to three digits and just picked 255 because it's a nerdy number