Well, I was looking around some videos on youtube when I found this! It's called Crouching Sonic Hidden Glitch. It's a series by tkwtube01. Enjoy! The glitches are for Sonic 1,2,CD, and 3. Here are episodes 1-8. NOTE: Episode 8 is an April Fool's Joke.
Episode 1: Red Rubber Ball
http://www.youtube.com/watch?v=yGTJcWmEn4M (http://www.youtube.com/watch?v=yGTJcWmEn4M)
Episode 2: Two Egg, Four-Tail Omelet
http://www.youtube.com/watch?v=9cK2jM8TqQo (http://www.youtube.com/watch?v=9cK2jM8TqQo)
Episode 3: Static Sonic and Dysfunctional Debug
http://www.youtube.com/watch?v=wapwD9hQjuU (http://www.youtube.com/watch?v=wapwD9hQjuU)
Episode 4: Sonic Looks Dashing
http://www.youtube.com/watch?v=62mhWJIzBhI (http://www.youtube.com/watch?v=62mhWJIzBhI)
Episode 5: The Mobius Magnets
http://www.youtube.com/watch?v=T7O04gEy7wU (http://www.youtube.com/watch?v=T7O04gEy7wU)
Episode 6: A Post to Tomorrow
http://www.youtube.com/watch?v=nY1upQNCOps (http://www.youtube.com/watch?v=nY1upQNCOps)
Episode 7: My Neck Bounced!
http://www.youtube.com/watch?v=ZStGHp03Evo (http://www.youtube.com/watch?v=ZStGHp03Evo)
Episode 8: Condemned Extra
http://www.youtube.com/watch?v=5liaDdt2rKY (http://www.youtube.com/watch?v=5liaDdt2rKY)
Don't forget to reply! :D
These were entertaining. I chuckled at some of the glitches, too