I wonder what kind of attacks Nack The Weasel would have used against Sonic. I've seen a couple of videos and I think this would have been the arsenal Nack used:
Guns - This is seen in a couple of screens involving Nack, and it was also used in Sonic the Fighters, so I think guns are a likely weapon.
Bombs - If you take a look at one of the screens, there is something that looks like a low-poly explosion on the ground. Sonic has taken a hit from it, and has now flown into the air with all his rings taken away. The Sonic Cult website says this may have come from Nack's gun, but I highly doubt it.
Unidentified flying items - These are unknown, but maybe, just MAYBE, these cold be used as items Nack could home in on Sonic to attack him. Or the other way round.
And I guess Eggman kinda made Nack grow a bit, which might be why Nack is that much bigger than Sonic, when he is supposed to be about the same size.
Guess that's it, really.
You know what they say...
All toasters toast bread, not toast!