Here's all the achievements I got from Sonic Tameshi so far. I just need like 10 more achievements or something an I 100% it.

Huh, never thought I'd find a Deltarune reference in Sonic Tameshi.

I FOUND YOU, FAKER! /ref

Mannequins from Ultrakill. Still fucking love these guys, pure terror

Amy? Uh..

Ultrakill-demonized my wooden snake :)

Yuh.

Is that a new community I see? Count me in!

Blood?

Here's the Final Boss of Sonic Tameshi (Final Rise), this is the Best Ending, so the Chaos Emeralds need to be collected and Eggman's Machines need to be destroyed to get this ending. If it wasn't obvious enough, this game is inspired by Sonic CD.