Sonic Jump Fever is a mobile game developed by SEGA that was released in 2014. The game is a continuation of the Sonic Jump series, which features Sonic the Hedgehog and his friends in various platforming adventures. Unlike previous games in the series, Sonic Jump Fever is a high-score chasing game with a time limit, where the player controls Sonic or one of his friends as they jump higher and higher in a vertical scrolling level.

The objective of the game is to jump as high as possible within the given time limit, collect rings, and defeat enemies to earn points. Players can unlock various characters and power-ups that help them achieve higher scores. The game also features a global leaderboard, allowing players to compete with each other for the top spot.

Sonic Jump Fever features colorful graphics and smooth animations that capture the fast-paced action of the Sonic franchise. The game also has a catchy soundtrack that adds to the excitement of each level. The game is free to play and is available for both iOS and Android devices.

The gameplay in Sonic Jump Fever is simple yet addictive. Players must tap the screen to make Sonic or their chosen character jump, and tapping twice performs a double-jump. The player must time their jumps carefully to avoid obstacles and collect rings, which are used to unlock new characters and power-ups. Power-ups include shields that protect the player from enemies and obstacles, speed boosts that increase the player's movement speed, and magnets that attract rings to the player.

Sonic Jump Fever features a "fever" mode, which is triggered by collecting enough rings to fill the "fever" meter. In this mode, the player's character moves faster and earns more points for a limited time. The game also has daily challenges that reward players with rings and other prizes for completing specific objectives.

As players progress through the game, they will encounter various enemies and obstacles that make each level more challenging. Some enemies can be defeated by jumping on them, while others must be avoided or hit with a power-up. Obstacles include spikes, moving platforms, and disappearing platforms that require precise timing to navigate.

The game also features boss battles, which are larger enemies that require multiple hits to defeat. Boss battles are more challenging than regular levels and require the player to use their power-ups and timing skills to avoid attacks and defeat the boss.

Overall, Sonic Jump Fever is a fun and addictive high-score chasing game that captures the spirit of the Sonic franchise. The game's simple yet challenging gameplay, colorful graphics, and catchy soundtrack make it a great choice for fans of the series and mobile gamers looking for a fast-paced action game.