: Transfer the .jar file to your phone via Bluetooth or SD card and run it from the "Applications" or "Games" folder.

While the modern era is dominated by high-definition smartphones, the Java port offers a pure, unfiltered experience of run-and-gun action.

the .jar file from one of the links above to your computer or directly to your mobile phone.

| Action | Key | |----------------|----------------------| | Move Left | 4 | | Move Right | 6 | | Jump | 2 | | Crouch | 8 | | Shoot | 5 (or Fire button) | | Switch weapon | 0 or # |

: Navigate through treacherous levels filled with snipers, turrets, and massive mechanical bosses.

Contrary to what some might think, this Java version is not a direct port of the Nintendo DS Contra 4 (released in 2007). Instead, it is a demake – a condensed, linear run-and-gun title capturing the spirit of Contra and Super Contra .

: Players control one of four commandos (Bill Rizer, Lance Bean, Mad Dog, or Scorpion) to defeat the Black Viper and its alien army.

⚠️ Avoid “auto-download” APK sites – Java games end with , not .apk.