It's a simple solid indestructible object and its coding hasn't changed since the Nick Arcade prototype. The graphics are long gone, but the code is still there, such as it is. This crystal was used in the earliest two prototypes to block off a tube in Hidden Palace Zone.

The upper four bits can be used to offset when it starts to rise in the air. The amount of time it floats in the air is 128*(lower four bits of subtype) frames. Every 1024 frames, it will slowly rise up for 128 frames, float in the air, then come back down 128 frames later. This object has been around since the Nick Arcade prototype. (Source: Sonic Retro) Unused Objects CPZ Hovering Platform You must also be playing as Sonic, as Tails cannot enter object placement mode. Trying to place an object in this death state will freeze the game, however. In addition, if Sonic dies, he can be revived by entering placement mode, moving to a safe spot, and exiting. Press C to advance the game by one frame.Press and hold B to slow down the game by 50%.Press A to go back to the title screen.While the game is paused, some debugging options are available:.Hold A and press C to move backward one object.Placement mode: Press B to enter placement mode.

Keep A held down until after the title card pops up.Īlternatively, it can be accessed with Pro Action Replay code FFFFFA:0001.įrom here, you have access to a variety of things: Choose any level, then hold A and press Start.In the level select's sound test, play sounds 01, 09, 09, 02, 01, 01, 02, 04 (Novembeing the date of the game's US release).

When the menu appears, hold A and press Start to bring up the Level Select screen.Įnabling the game's debug mode requires the level select to be enabled.

Press Start to return to the title screen.

In the sound test, play sounds 19, 65, 09, 17 (Septembeing Yuji Naka's birthday).

Like the first game, Sonic 2 has a well-known level select: A large number of interesting things were cut from the final version, such as the mysterious and ever-famous level, the Hidden Palace Zone. Sonic the Hedgehog 2 is the sequel to the first game, which introduces a playable Miles 'Tails' Prower (unlike Sonic the Hedgehog 2 8-bit), the iconic Spin Dash, the idea of robot versions of Sonic, and an actual reward for collecting all six seven Chaos Emeralds, the golden-quilled Super Sonic.

Full sonic 1 title sprite