In Battle Gear, you need to use LEFT and RIGHT ARROW KEYS or KEY A and D keys to scroll the view on the battle field, you can also use your mouse by moving the cursor to the edge of the game screen. Use KEY Z or C keys to fast scroll to the left of right edge of the battle field. Click on a unit to train and attack the enemy. Before you send your army to the front you have to create a new unit by clicking the unit type, whose hot keys is 1 to 9. Choose type of troops and the objectives to destroy the enemy base or eliminate all enemy troops when you see them. You will lose if your base is destroyed or you run out of units. The game is on www.flash-game.net. Good luck!