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Sonic the Hedgehog 2 (pre-beta)/Comparisons/Sky Fortress Zone

From Sonic Retro

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Wing Fortress Zone (named Sky Fortress Zone in this prototype) is playable, but is in a preliminary state and cannot be completed normally, nor can it be accessed in normal play due to Sky Chase Zone not being completable. All cutscenes here are extremely incomplete.

Sonic2PreBeta MD Comparison WFZ Start.png
Pre-beta
Sonic2 MD Comparison WFZ Start.png
Final game

Only one laser is fired to shoot down the Tornado in this prototype, and it doesn't overlap the Tornado. There are also no sound effects for the lasers or Tornado.

Sonic2PreBeta MD Comparison WFZ SpeedLauncher.png
Pre-beta
Sonic2 MD Comparison WFZ SpeedLauncher.png
Final game

The speed launcher at the beginning of the Zone is placed further ahead and catapults the player backwards. Additionally, speed launchers disappear after they have launched the player in this prototype.

Notavailable.svg
Pre-beta
Notavailable.svg
Final game

Part of the background does not scroll properly, and this would not be fixed until the final release.

Sonic2PreBeta MD Comparison WFZ FanPlatform.png
Pre-beta
Sonic2 MD Comparison WFZ FanPlatform.png
Final game

These large fan platforms behave differently here in that they are on a timer, periodically deactivating and reactivating. In the final, they are always active.

Sonic2PreBeta MD Comparison WFZ Clucker.png
Pre-beta
Sonic2 MD Comparison WFZ Clucker.png
Final game

There are no Cluckers, but the Zone has been set up for them. They are present in the Zone's object list and are fully functional.

Sonic2PreBeta MD Comparison WFZ HangingBar.png
Pre-beta
Sonic2 MD Comparison WFZ HangingBar.png
Final game

Sonic can't hang onto the metal bars yet, but the developers have kindly provided moving platforms to get around the level instead.

Sonic2PreBeta MD Comparison WFZ ConveyorPlatforms1.png
Pre-beta
Sonic2 MD Comparison WFZ ConveyorPlatforms1.png
Final game

This vertical conveyor belt by the Power Sneakers monitor does not carry platforms yet.

Sonic2PreBeta MD Comparison WFZ Ramp.png
Pre-beta
Sonic2 MD Comparison WFZ Ramp.png
Final game

There is a half-pipe here. This was later changed to a quarter-pipe ramp from Beta 4 onwards.

Sonic2PreBeta MD Comparison WFZ ConveyorPlatforms2.png
Pre-beta
Wingfortress.png
Final game

The other vertical conveyor belts in the Zone work, but they erroneously use the rotating palettes from the rocket exhausts.

Sonic2PreBeta MD Comparison WFZ ConveyorPlatformBug.png
Pre-beta
Sonic2 MD Comparison WFZ ConveyorPlatformBug.png
Final game

There is also a bug with them - if Sonic stands on a platform as it's disappearing, his vertical position will "lock", allowing him to move left or right without being affected by gravity. Jump and gravity will take effect, though collisions continue to be wonky until Sonic interacts with an object.

Sonic2PreBeta MD Comparison WFZ Layering.png
Pre-beta
Sonic2 MD Comparison WFZ Layering.png
Final game

There are layering issues, with Sonic being drawn on top of walls instead of behind.

Sonic2PreBeta MD Comparison WFZ ConveyorPlatforms3.png
Pre-beta
Sonic2 MD Comparison WFZ ConveyorPlatforms3.png
Final game

Not only do these conveyor belt platforms have palette issues, two of them are moving in opposite directions.

Sonic2PreBeta MD Comparison WFZ TurretPlatforms.png
Pre-beta
Sonic2 MD Comparison WFZ TurretPlatforms.png
Final game

The "disappearing" platforms have yet to be added, but again moving platforms are here to take the player further. Like with the Cluckers, they are in the object list and are fully functional.

Sonic2PreBeta MD Comparison WFZ BossPropeller.png
Pre-beta
Sonic2 MD Comparison WFZ BossPropeller.png
Final game

There's a harmful propeller directly above the contraption that the player must bust to reach the boss arena. This was later removed as it made it difficult to enter without getting hit.

Sonic2PreBeta MD Comparison WFZ BossRoomLeft.png
Pre-beta
Sonic2 MD Comparison WFZ BossRoomLeft.png
Final game

The camera does not lock after opening the boss arena, allowing the player to go backwards and see this inside.

Sonic2PreBeta MD Comparison WFZ BossRoom.png
Pre-beta
Wingfortressboss.png
Final game

Barrier Eggman isn't here yet, so the player is instead treated to two spherical turrets. The rotating palettes haven't been programmed to change at this point, either, leading to the blinking lights to display the wrong colours.

Sonic2PreBeta MD Comparison WFZ PostBossRings.png
Pre-beta
Sonic2 MD Comparison WFZ PostBossRings.png
Final game

There are Rings when dropping down into the docking bay. There's no need for them at this point, so they were later removed.

Sonic2PreBeta MD Comparison WFZ 1Up.png
Pre-beta
Sonic2 MD Comparison WFZ 1Up.png
Final game

The 1-Up monitor isn't here yet.

Sonic2PreBeta MD Comparison WFZ EscapeShip.png
Pre-beta
Sonic2 MD Comparison WFZ EscapeShip.png
Final game

Dr. Eggman can be found in his escape ship, but he won't depart from the docking bay. The player also retains full control here in this prototype.

Sonic2PreBeta MD Comparison WFZ TornadoBooster.png
Pre-beta
TornadoWithBoosterInWFZ.png
Final game

Walk to the edge of the bay, and the Tornado will appear to pick up Sonic, albeit without its engine booster upgrade. At this point, the player is forced onto it and can still control Sonic, but they cannot make him jump off of it. He will be pushed to the left, but he can't fall off that way.

Sonic2PreBeta MD Comparison WFZ TornadoAndShip.png
Pre-beta
Sonic2 MD Comparison WFZ TornadoAndShip.png
Final game

Eggman's escape ship can be seen again on the way up, but the Tornado will keep flying past it.

Sonic2PreBeta MD Comparison WFZ DeathEgg.png
Pre-beta
Sonic2 MD Comparison WFZ DeathEgg.png
Final game

Eventually the Tornado will reach the Death Egg...and keep flying past it and off the top of the screen, and the Zone will not end. At this point, however, the player can jump off the Tornado and die.

Map

100%
Pre-beta
100%
Final game


References


Sonic the Hedgehog 2 (pre-beta), prerelease version of Sonic the Hedgehog 2 (16-bit)
S2b4 titlescreen.png

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Part of Sonic the Hedgehog 2 (16-bit) development