Fast Fusion
Fast Fusion is a 2025 racing video game developed and published by Shin'en Multimedia for the Nintendo Switch 2. It is the fourth installment in the Fast series, following Fast RMX. The game was released on 5 June 2025 on the Nintendo eShop as a launch title for the console.
Gameplay
Like most racing video games, players must reach the end of a track as soon as possible. Unique to the Fast series is the polarity mechanic, where players collect boost energy by switching between two colors. Each color has respective boosts and jump pads, which can only be used if a player is currently its respective color. Upon completing a race, players are rewarded a number of points, depending on which place of 8 they finished in. At the end of a cup, players receive an in-game currency called coins which they can use to purchase new cups and vehicles or fuse two vehicles into one.The game features a single-player campaign with 10 cups of 3 courses to unlock, with only 3 cups to choose from at the beginning of the game, along with 15 unlockable vehicles. These vehicles can be fused together for a total of 210 combinations. From the beginning, players have access to 3 vehicles.
The game also contains multiplayer components, featuring split-screen multiplayer mode for up to 4 players, as well as local communication. Another extra mode called Super Hero Mode is available, using the same tracks as the campaign with higher difficulty and with the boost meter doubling as a health bar, similarly to games in the F-Zero franchise.
Development
Fast Fusion was announced during a Nintendo Direct to be released on 5 June 2025 as a launch title for the Nintendo Switch 2. It runs at up to 4K resolution at 60 frames per second and supports HDR, a first for the series. The game uses DLSS for upscaling. It also supports motion control and HD Rumble and includes a four-player split screen mode. Furthermore, the game supports both GameShare and GameChat for two players locally and online. Jack Merluzzi, known for voicing the announcer in Fast Racing Neo and F-Zero GX, is among the voice cast for the game.When asked in an interview about the lack of a 120 FPS mode, Shin'en Multimedia's CEO Manfred Linzner answered: "Of course 120FPS would be nice to have, so we will look if this will be possible for a later patch."
At the time of its release, Fast Fusion featured four performance modes: "Performance", "Balanced", "Quality", and "Ultra Quality", with each using a corresponding quality preset of DLSS and the "Ultra Quality" mode enabling additional graphical details. A "Pure" mode was later added via an update that displays the game without image scaling. Said update, released on June 26, 2025, also added three new tracks and new jukebox entries.