
Game Overview
Arcade shooting gets a welcome shot of rivalry here, turning the familiar vertical shmup formula into a direct duel between two players. Rival Megagun puts each pilot on a separate side of a split screen, where both clear waves of enemies while trying to build enough power to become a towering Mega Gunship. Once transformed, your ship crosses into the opponent’s playfield as a screen-filling boss, forcing them to survive a barrage while continuing their own run. The result is bright, fast, and deliberately chaotic: a retro-styled shooter that treats every successful attack as a chance to ruin someone else’s rhythm.
Matches revolve around dodging bullet patterns, destroying formations efficiently, and managing the resources needed to trigger your invasion at the right moment. Each hero brings a distinct standard weapon, special attack, and boss form, so choosing a character affects both your regular shooting and the pressure you apply during Mega Gunship assaults. Unlockable weapons and gear provide room to tailor a preferred loadout, whether you favor stronger coverage, focused damage, or tools that help keep the screen under control. Local two-player versus is the main attraction, while online matchmaking and friend battles let the competition continue beyond the couch; a solo arcade mode offers a useful place to learn enemy patterns and test characters.
Its best idea is making the player-controlled boss the reward for skilled shmup play rather than a scripted obstacle. That creates the same back-and-forth tension as competitive puzzle games such as Puyo Puyo Tetris, but demands the movement, precision, and pattern recognition of classic arcade shooters. Colorful pixel art, exaggerated ship designs, and constantly escalating bullet clutter keep every round readable enough to learn yet hectic enough to produce last-second reversals. Rival Megagun suits shoot-’em-up veterans looking for a fresh competitive format, but its straightforward controls and arcade structure also make it an approachable pick for newcomers with a rival nearby.
Screenshots
Installation
- Select the Download button at the top of this page to open UploadHaven.
- On UploadHaven, wait for any countdown, then select Free Download. Optional: UploadHaven Pro for faster downloads.
- When complete, extract the archive to a Rival Megagun folder using 7-Zip.
- Open the extracted folder and start the game normally.
- For errors, check Setup Guide & Troubleshooting below. Keep your security software enabled.
System Requirements
- OS: Windows 7
- Processor: Intel Core i3 2 GHz or better
- Memory: 2 GB RAM
- Graphics: Intel(R) HD Graphics 6000
- DirectX: Version 11
- Storage: 1 GB available space
Setup Guide & Troubleshooting
How do I fix missing DLL errors for Rival Megagun (v1.1.4)?
After extracting Rival Megagun (v1.1.4), navigate to the _Redist or _CommonRedist folder inside the game directory and install DirectX, Vcredist, and any other dependencies included.
What should I do if the downloaded file is corrupted?
The full archive is 317.82 MB — make sure your download completed fully before extracting. Use 7-Zip to extract the files. If you still see a "file corrupted" error, re-download and try again.
Do I need to run the game as administrator?
Usually, no. Start the game normally from the extracted folder. If you see a permissions or save error, check that the folder is writable and follow the game's documented fix. Only grant administrator access when a trusted game's specific setup requires it.
How do I update my GPU drivers for this game?
The game won't launch — what should I try?
Check that extraction completed and your PC meets the system requirements, including Version 11. Note any error message before choosing a fix. If it identifies a missing runtime, install the required DirectX components or Microsoft Visual C++ Redistributable from Microsoft.
My antivirus is blocking the game — is it safe?
A warning needs to be investigated; the download source alone cannot confirm that a file is safe. Keep your security software enabled and review the detection details. Do not run or restore a flagged file unless you have verified that it is a false positive. If you are unsure, leave it quarantined.