Hey look a this guy's, i was hanging out on ebay and i found this surnatural appearance.

Pretty neat huµ ? It seems that some one have found a way to port celeste in a homebrew GBA cartridge.
I'm really curious about the process to reach such a chimeric combo, was it more a work about software or hardware ?
And i was wondering if it's possible to make it for gameboy color what i feel more legitimate and aesthetic for a pico 8 port ...

If you want to see the selling page:
https://www.befr.ebay.be/itm/Celeste-Classic-Pico-8-version-for-GBA-Nintendo-Gameboy-Advance-custom-cartridge/324042840881?hash=item4b72755b31:g:Qo8AAOSwHLFeHo9d

well thats lame, id rather see how it was ported and not that its for sale

https://github.com/JeffRuLz/Celeste-Classic-GBA/releases Well Here's the Github link that has the original ROM along with the source code if you want to take a look at what he did. He said it was a port not an emulation here: https://gbatemp.net/threads/release-celeste-classic-gba-port.544992/

It'd be pretty much impossible to run Pico8 on GBA hardware. For one thing there's not nearly enough RAM. I'm pretty sure the CPU would also be insufficient.

About the only way you could make this work would be to hide a whole computer in the cartridge and just have some code that copies the frame-buffer over. Effectively you'd be using the hidden computer to stream video to the GBA.

Here is a fun video about a guy who hid a RasPI in a NES cartridge, so that kind of trick is not impossible.