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Proto:Sonic the Hedgehog 4 - Episode I/Japanese WiiWare Prototype

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To do:
  • Find pictures of the early World Map
  • List similarities to Mobile Version.

The Japanese WiiWare Prototype of Sonic 4 was accidentally released on the Japanese WiiWare service. It has many things in common with the iOS version and was built on February 9th, 2010.


  • No way to progress to the next act without using the Level Select screen.
  • The cutscene that transitions to E.G.G. Station Zone (After completing the Mad Gear Zone Boss act.) is absent.
  • Several other graphical effects are missing. Sonic's "wheel-of-feet" animation only appears when Sonic is at top speed. No motion blur effects are present in this build.
  • In the final build, the Special Stage can be used with either the directional pad or by tilting the Wiimote. In this version, it can only be played by tilting the Wiimote.


  • Casino Street Zone Act 2 has a completely different song. It also lacks a speed shoes remix as there are no speed shoes in the level.
  • Super Sonic uses the invincibility BGM as he hadn't had his own theme yet.
  • In Casino Street Zone, Act 2 had a different music track which was appropriate for the score attack level.

World Map

  • Instead of a landscape, the Japanese WiiWare Prototype of Sonic 4 uses a more simple level select with pictures of the levels.
  • It is also the only way to access the next act, as the "Play Next Act" option wasn't implemented yet.
  • Since there was no World Map at the time, level select used the menu music.


  • In Casino Street Zone, Act 2 contains the 100,000 Point Challenge, a short score attack level in a pinball-style area.
  • In Lost Labyrinth Zone, Act 2 contains the controversial Mine Cart level where Sonic remained in the cart throughout the level, which controlled poorly. It is controlled using the Wiimote's tilt function. The Mine Cart section is reduced greatly and plays automatically in the console version. The moving wall in Act 3 was much faster and harder to complete the area compared to the final version.
  • In Mad Gear Zone, the sirens in Act 3 do not play sound at all.

(Source: verne94)