Contra is originally an arcade game released in 1987 by the Konami corporation. This anniversary edition features more options and better effects with an advanced hiscore system.

Move: WASD

Fire: J

Jump: K

Cheat codes:

1. GOD MODE: press "Shift+2+P" during playing: no one can beat you.

2. Press "Shift+2+S", while press "OK" button in the game options, you get SPREAD GUN as default weapon, and "Shift+2+L" for laser gun, etc.

Tips: Harder difficulty (in the game options) result in higher score!