Game description: Harbor shooting game, the game can choose a variety of models can also be double battle ~ Come to snatch your Underwater World of it! Option to enter the game DUELMODE (duel mode), SURVIVALMODE (survival mode), DUALPLAYERMODE (double mode). Operations Guide: Single people, ↑ ↓ arrow keys to control mobile launchers , ← → arrow keys to select weapons , X button to select the recognition , Z key to fire . Double: 1P.W / S keys control the vertical movement of the transmitter , A / d button to select the weapons , J key to fire , K confirm button to select the . 2P. Mouse to control the up and down the mobile launchers , ← → arrow keys to select weapons , confirmed the arrow keys to choose ↑ . White bottom of the screen after the selection of weapons you can use to confirm.