Mind-boggling Sonic art lost to the ages

A little Halloween cheer that Tails could do without.

Boom! Sega summons Sega HQ into the deep desert. Hope they brought their Stillsuits.

False advertising: we all know how crappy Sonic handles underwater.

Back to the strange style that looks right out of a doctor, possibly dentist's office.

Years before Superstar Tennis, there was this. How does it compare?

Is this before or after he locked Tails out and sipped champagne alone?

Thanks for breaking my wrist, Sonic!

The flowers are enough. Did we need the neon heart too?

Sonic on skis. Great, now we can look forward to that too.

I feel like I've seen this one somewhere, but can't place it. Classy!