Mega Mario is a free, portable Mario inspired platformer for Windows PC that lets players enjoy the classic side scrolling gameplay of Nintendo’s original Super Mario Bros. This fan-made 2D platform game combines nostalgia with modern improvements, including smoother controls, updated pixel art, and widescreen support. Perfect for retro gaming fans, students, or anyone who loves classic side scrolling games on PC.
Mega Mario | Portable Super Mario Style Game for PC

Mega Mario faithfully recreates the original Super Mario Bros experience, including power-ups, hidden blocks, warp pipes, and precise platforming. Unlike emulated versions, it runs natively on modern Windows systems without additional software and can be launched directly from a USB flash drive, making it a portable Mario game ideal for on the go portable gaming. Lightweight and fast, it even works on older PCs or laptops.
Features of Mega Mario: Mario Clone and Retro Platformer
- Retro Pixel Graphics: Classic 8-bit visuals with cleaner, modernized pixel art.
- High Resolution Support: Optimized for modern monitors and widescreen displays.
- Smooth Gameplay: Responsive controls and refined mechanics for seamless platforming.
- Expanded Levels: Additional fan-created stages for more variety and new challenges beyond the original NES game.
- Fan-Created Storyline: Follow Mario and Luigi in a creative continuation of the classic series.
- USB Portable Gaming: Fully portable; no installation required and playable on any Windows PC.
- Free and Open Source: Open source under GPL, allowing modification and redistribution.
Mega Mario is a great choice for anyone searching for free Super Mario style platform games, USB Mario games, or classic retro side scrollers for Windows.
System Requirements and Download
- Developer: Project Page
- License: Open Source (Free)
- Supported OS: Windows 11, 10, 8, 7
- Portable: Yes – no installation required
- File Size: 8.57 MB (unzipped)
- User Rating: ★★★★★
- Direct Download: Download Mega Mario for PC
Play More Free Mario Style Platformers
If you love Mega Mario, check out Secret Maryo Chronicles. This fan-made 2D platformer features original levels, updated physics, and the same portable convenience, giving you more classic-style Mario gameplay on PC.
Other popular searches for similar games include:
- Free Super Mario clone for Windows
- Portable Mario games for USB
- Retro side scrolling platformers
- Fan-made Mario style PC games
- Lightweight 2D platform games
Final Thoughts: Is Mega Mario Worth Playing?
Mega Mario is a top choice for fans of classic Super Mario Bros or retro 2D platformers. It captures the essence of the original game while adding smoother controls, high-resolution graphics, extra levels, and full USB portability. Lightweight, plug n play, and fully open source, it runs on almost any Windows PC or laptop and is perfect for gaming anywhere.
Whether revisiting childhood favorites or discovering classic side scrollers for the first time, Mega Mario offers a fun, nostalgic, and portable platforming experience that balances retro charm with modern usability.