Yes, Seafloor Racing 3D is available on both mobile and PC platforms, providing an exciting underwater racing experience on different devices.

You can expect various unexpected obstacles such as playful whales that may appear at any moment while you race through vibrant ocean environments.

Absolutely! You can enhance your racing adventure by customizing your vehicle in the extensive in-game shopping mall, where you can find a variety of upgrades and accessories to personalize your ride.

Unfortunately, specific information about multiplayer modes isn't provided in the description. It's best to check the official game website or reviews for more details on multiplayer options.

The ocean environments in Seafloor Racing 3D are described as vibrant, offering an immersive underwater racing experience with detailed visuals of the ocean surroundings.

While not explicitly mentioned, many racing games feature special events and challenges. It's worth checking the game's updates or community forums for any special events or challenges available in Seafloor Racing 3D.

The ability to play offline depends on the game's design. Typically, racing games allow offline play, but it's best to verify this information from the game's official sources or user reviews.

Details about specific controls aren't provided, but racing games usually offer intuitive controls. You might want to explore the game's tutorial or settings to familiarize yourself with the controls in Seafloor Racing 3D.