Fun game! The most important accessory it seems is the Emergency Device. I don't care if you only have 3 accessory slots, you need 3 Emergency Devices to get through some of the bosses. For beginners just hit the space bar when bullets are about to hit you and they turn into coins, thus saving you. There is a cooldown of about 4 seconds, so don't rely on it too heavily. Aside from this it is worthless to add more missiles, and lasers are basically useless and drain a lot of energy. Hopefully this helps!
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