On a Japanese system, the trademark symbols are not removed from the SEGA logo and title screen, and Tails' life counter does not become 'Miles' even though the results tally changes to 'Miles'.

Monitor behavior is now like in Sonic & Knuckles where monitors can be destroyed from any side, even from underneath.

All the explosions are black when debug mode is enabled.

Pressing A while the game is paused returns you to the level select screen rather than the SEGA logo screen.

The timer displays the number of on-screen sprites, and the rings counter will display the ID number of the character's animation frame.

When debug mode is active, the debug counters are always shown, unlike in Sonic 3C 0408 and Sonic 3 & Knuckles when they are only shown when in object placement mode.

If the game is beaten with the seven Chaos Emeralds, at the end of the staff credits, instead of the Sonic 3 logo appearing the 'TRY AGAIN' screen with Robotnik and Knuckles will still appear, but Knuckles will juggle no Chaos Emeralds.

(The final Sonic 3 actually had 14 save images 6 for S3 only, 8 for Sonic 3&K.)

There are also only 6 save files as opposed to 8 in Sonic 3 & Knuckles, and lives and continues are not saved or shown. You can play a saved game past Launch Base Zone, but when you exit the game, the save will be indicated as 'Clear', and only Zones 1 through 6 can be selected. The save format is identical to the one found in Sonic 3.Knuckles can be selected in 1-Player mode.Note: S3 = Sonic the Hedgehog 3, Sonic 3&K = Sonic the Hedgehog 3 & Knuckles All Chaos Emeralds: At the Sound Test, play songs 02, 04, 06, 08.The ring counter will be replaced with a player sprite/frame counter. Press A while selecting a level on the Level Select screen. Debug Mode: Debug is enabled by default.Just scroll down on the title screen menu and select Sound Test.

Unfortunatley for fans, he's only appeared in one game, Sonic 3 & Knuckles, which was remade for Sonic Mega Collection/Plus and Sonic Classic Collection. He is invincible, can fly, and can even breath underwater. He can also perform a Sonic Boom (or sometimes called a Hyper Flash both unofficial names) which is a sudden burst of speed that detroys any nearby Badniks. He can travel at at least Mach 5 speed, which is where Hyper Sonic got his name from.

Hyper Sonic has all of Super Sonic's powers and more. In this form Sonic can run faster than Super Sonic and can breathe underwater. Using the power of the Super Emeralds, Sonic transforms into his Hyper Form. Hyper Sonic is an enhanced version of Sonic. Mach 5 speed, Sonic Boom, ability to breathe underwater Super Emerald Entity/African Pygmy Hedgehog

Hyper sonic sprites sonic 3