My! Invasion is a defense game where you shoot down the UFOs by ricocheting your shots of the walls. The game gets harder as level progress and you only have one life for the whole game, so make sure that the Earth's shield is not completely drained or it's game over. There are Shield boosts to pick up which will help you out throughout the game. Be careful when shooting as your shots will be destroyed if you hit any force fields. You do have some special weapons to pick up through the game, these will pass through force fields after they've been deployed. Also be careful not to waste your special weapons in the thunder lightning levels.