Sonic Jump

While games in the Sonic the Hedgehog series commonly involve running from side to side, Sonic Jump involves no running, but rather, Sonic jumping through the stages vertically to get to the top of the stage. The player controls Sonic by tilting the device left or right. Sonic jumps automatically, though a "double jump" move can be used upon tapping the touchscreen. Rings are collected throughout the stages, and protect Sonic from damage.

In the original version, finishing an act with 50 or more rings would reward the player with a shard of a Chaos Emerald. In the remake, accumulated rings can be used to purchase further content in the game, such as items, upgrades, or additional playable characters. Players can "level up" by achieving certain objectives in each stage; increasing the player's level will allow access to new content for purchase.

The original Sonic Jump was developed by AirPlay and Sonic Team. Most of the graphics were taken from the Sonic Advance series, which had concluded shortly before the game's release, while the zone themes were taken from the Sega Genesis games. The original version of Sonic Jump was released in Japan on February 21, 2005, for the Sonic Cafe digital distribution service; in April 2007, the game was released internationally for iOS and Android devices as part of the Sega Mobile service, as well as for the T-Mobile Sidekick phone. Sega published the game in all regions.

The new version of the game was first teased by Sega on October 5, 2012. It was then announced and released less than two weeks later on iOS on October 18, 2012, and for Android on December 21, 2012. A short adaptation of Jump was published in issue 5 of the Sonic Super Digest magazine by Archie Comics to coincide with the release of the remake. On March 21, 2018, Sonic Jump was made available for playing on Facebook.

The 2005 version of Sonic Jump received mixed reviews from critics, who praised the game's presentation but criticized the overall gameplay. IGN gave the game a 5 out of 10 score, stating the game was "not engaging and "dull" and that "controls seemed sluggish and occasionally inaccurate". Stuart Dredge of Pocket Gamer thought the concept was an "interesting idea", but felt that the controls and high difficulty would not be ideal for newer players.

The 2012 version received "generally favorable reviews" according to review aggregator website Metacritic, scoring 77/100. On iOS, the game hit over 8.8 million downloads (including free downloads) in North America and Europe after five months, as of July 2013.

A sequel to the original version titled Sonic Jump 2 released on May 20, 2008, for then-current mobile devices.

Hardlight later developed Sonic Jump Fever, a sequel to the HD version that adds new features including minigames; it released on July 10, 2014, to mixed reviews. Sonic Jump Fever was downloaded 28.3 million times, but only generated US$600,000 in profits. As of November 7, 2016, the game is no longer available for download, possibly due to the lackluster sales performance.