Hopefully they can add new music for the 1.0 release.
PS: There was something super jarring to me regarding the music, and it was the act clear jingle, which is taken from gunstar heroes, and it distracted me with how recognizable it is. The mod includes the original Megamix levels with 16:9 aspect ratio too, and you can play them with the new characters / movesets. Sonic the Hedgehog Genesis (Genesis) is a hack of Sonic the Hedgehog by Xenowhirl which attempts to recreate certain aspects of the Game Boy Advance Sonic 1 port titled Sonic the Hedgehog Genesis. If i were to choose between this and Sonic Triple Trouble 16-bits tho, i would pick the latter without hesitation (which i've been playing lately).
I don't like Sonic CD, so you can probably guess how much i liked this, but it really is solid and there are some cool ideas in there.
The level design reminded me too much of Sonic CD in terms or random shit everywhere, and levels are more maze like than those from 3&K and Mania, which i guess makes sense given that the original Megamix was a mod for Sonic 1. I finally played all the available stages with Shadow, and he is crazy fast with his drop kick, which is literally an instant drop dash.
