I just hope this won't be weaponized to attack emulation. Many big publishers and platform owners are unhappy with proliferation of ROMs and emulators. With things like these (and according to other commenters the ads are obnoxious and emulation quality not that high) the argument can change from "emulation is SATAN, these old games for old platforms must DIE OFF" to "there is a legal way to play our games, this is piracy".
They wouldn't be totally wrong if they made that argument. Although, I personally believe that if you already own the game in one format, it's fine to use a ROM on an emulator. I'm open to other arguments though.
The thing is that ROMs and emulators on PC offer some big incentives - stuff like Launch Box, settings and shaders, raw power of the device, controller support, etc. The emulator used/bundled here is apparently inferior to even one SEGA themselves used before on older devices.
In theory the ROM sites have a disclaimer that this is archival purposes, to be downloaded by legal owners, etc. - in practice anyone can download them. But if it wasn't for these borderline illegal sites the games would D I E. Nintendo famously used an 'illegal' ROM of Mario and sold copies of it, some people speculated that they lost the original material.
Yes, I guess piracy sucks and is technically illegal but even I (and I don't play many games at all) had to download cracks for physical legal copies I owned (including once for a game published by SEGA, funnily enough).
